library(tidyverse)
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## ✔ forcats   1.0.0     ✔ stringr   1.5.1
## ✔ ggplot2   3.5.2     ✔ tibble    3.2.1
## ✔ lubridate 1.9.4     ✔ tidyr     1.3.1
## ✔ purrr     1.0.4     
## ── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
## ✖ dplyr::filter() masks stats::filter()
## ✖ dplyr::lag()    masks stats::lag()
## ℹ Use the conflicted package (<http://conflicted.r-lib.org/>) to force all conflicts to become errors

Sleep Data Analysis

Print the structure of your dataset.

Sleep=read.csv("Sleep.csv")
str(Sleep)
## 'data.frame':    99 obs. of  13 variables:
##  $ Person.ID              : int  1 2 3 4 5 6 7 8 9 10 ...
##  $ Gender                 : chr  "Male" "Male" "Male" "Male" ...
##  $ Age                    : int  27 28 28 28 28 28 29 29 29 29 ...
##  $ Occupation             : chr  "Software Engineer" "Doctor" "Doctor" "Sales Representative" ...
##  $ Sleep.Duration         : num  6.1 6.2 6.2 5.9 5.9 5.9 6.3 7.8 7.8 7.8 ...
##  $ Quality.of.Sleep       : int  6 6 6 4 4 4 6 7 7 7 ...
##  $ Physical.Activity.Level: int  42 60 60 30 30 30 40 75 75 75 ...
##  $ Stress.Level           : int  6 8 8 8 8 8 7 6 6 6 ...
##  $ BMI.Category           : chr  "Overweight" "Normal" "Normal" "Obese" ...
##  $ Blood.Pressure         : chr  "126/83" "125/80" "125/80" "140/90" ...
##  $ Heart.Rate             : int  77 75 75 85 85 85 82 70 70 70 ...
##  $ Daily.Steps            : int  4200 10000 10000 3000 3000 3000 3500 8000 8000 8000 ...
##  $ Sleep.Disorder         : chr  "None" "None" "None" "Sleep Apnea" ...

List the variables in your dataset.

ls(Sleep)
##  [1] "Age"                     "Blood.Pressure"         
##  [3] "BMI.Category"            "Daily.Steps"            
##  [5] "Gender"                  "Heart.Rate"             
##  [7] "Occupation"              "Person.ID"              
##  [9] "Physical.Activity.Level" "Quality.of.Sleep"       
## [11] "Sleep.Disorder"          "Sleep.Duration"         
## [13] "Stress.Level"

Print the top 15 rows of your dataset.

head(Sleep, 15)
##    Person.ID Gender Age           Occupation Sleep.Duration Quality.of.Sleep
## 1          1   Male  27    Software Engineer            6.1                6
## 2          2   Male  28               Doctor            6.2                6
## 3          3   Male  28               Doctor            6.2                6
## 4          4   Male  28 Sales Representative            5.9                4
## 5          5   Male  28 Sales Representative            5.9                4
## 6          6   Male  28    Software Engineer            5.9                4
## 7          7   Male  29              Teacher            6.3                6
## 8          8   Male  29               Doctor            7.8                7
## 9          9   Male  29               Doctor            7.8                7
## 10        10   Male  29               Doctor            7.8                7
## 11        11   Male  29               Doctor            6.1                6
## 12        12   Male  29               Doctor            7.8                7
## 13        13   Male  29               Doctor            6.1                6
## 14        14   Male  29               Doctor            6.0                6
## 15        15   Male  29               Doctor            6.0                6
##    Physical.Activity.Level Stress.Level BMI.Category Blood.Pressure Heart.Rate
## 1                       42            6   Overweight         126/83         77
## 2                       60            8       Normal         125/80         75
## 3                       60            8       Normal         125/80         75
## 4                       30            8        Obese         140/90         85
## 5                       30            8        Obese         140/90         85
## 6                       30            8        Obese         140/90         85
## 7                       40            7        Obese         140/90         82
## 8                       75            6       Normal         120/80         70
## 9                       75            6       Normal         120/80         70
## 10                      75            6       Normal         120/80         70
## 11                      30            8       Normal         120/80         70
## 12                      75            6       Normal         120/80         70
## 13                      30            8       Normal         120/80         70
## 14                      30            8       Normal         120/80         70
## 15                      30            8       Normal         120/80         70
##    Daily.Steps Sleep.Disorder
## 1         4200           None
## 2        10000           None
## 3        10000           None
## 4         3000    Sleep Apnea
## 5         3000    Sleep Apnea
## 6         3000       Insomnia
## 7         3500       Insomnia
## 8         8000           None
## 9         8000           None
## 10        8000           None
## 11        8000           None
## 12        8000           None
## 13        8000           None
## 14        8000           None
## 15        8000           None

Write a user defined function using any of the variables from the data set.?????????????

SleepEffectiveness=function(Duration,Quality){Duration*Quality}
SleepEffectiveness(7,6)
## [1] 42

Use data manipulation techniques and filter rows based on any logical criteria that exist in your dataset.

HealthyMale=Sleep %>% filter(Sleep.Duration>7,Quality.of.Sleep>6,Stress.Level>5,Gender=="Male")
HealthyMale
##    Person.ID Gender Age Occupation Sleep.Duration Quality.of.Sleep
## 1          8   Male  29     Doctor            7.8                7
## 2          9   Male  29     Doctor            7.8                7
## 3         10   Male  29     Doctor            7.8                7
## 4         12   Male  29     Doctor            7.8                7
## 5         20   Male  30     Doctor            7.6                7
## 6         21   Male  30     Doctor            7.7                7
## 7         22   Male  30     Doctor            7.7                7
## 8         23   Male  30     Doctor            7.7                7
## 9         24   Male  30     Doctor            7.7                7
## 10        25   Male  30     Doctor            7.8                7
## 11        26   Male  30     Doctor            7.9                7
## 12        27   Male  30     Doctor            7.8                7
## 13        28   Male  30     Doctor            7.9                7
## 14        29   Male  30     Doctor            7.9                7
## 15        30   Male  30     Doctor            7.9                7
## 16        35   Male  31     Doctor            7.7                7
## 17        38   Male  31     Doctor            7.6                7
## 18        39   Male  31     Doctor            7.6                7
## 19        40   Male  31     Doctor            7.6                7
## 20        41   Male  31     Doctor            7.7                7
## 21        42   Male  31     Doctor            7.7                7
## 22        43   Male  31     Doctor            7.7                7
## 23        44   Male  31     Doctor            7.8                7
## 24        45   Male  31     Doctor            7.7                7
## 25        46   Male  31     Doctor            7.8                7
## 26        47   Male  31     Doctor            7.7                7
## 27        48   Male  31     Doctor            7.8                7
## 28        49   Male  31     Doctor            7.7                7
## 29        50   Male  31     Doctor            7.7                7
## 30        54   Male  32     Doctor            7.6                7
## 31        57   Male  32     Doctor            7.7                7
## 32        60   Male  32     Doctor            7.7                7
## 33        67   Male  32 Accountant            7.2                8
##    Physical.Activity.Level Stress.Level  BMI.Category Blood.Pressure Heart.Rate
## 1                       75            6        Normal         120/80         70
## 2                       75            6        Normal         120/80         70
## 3                       75            6        Normal         120/80         70
## 4                       75            6        Normal         120/80         70
## 5                       75            6        Normal         120/80         70
## 6                       75            6        Normal         120/80         70
## 7                       75            6        Normal         120/80         70
## 8                       75            6        Normal         120/80         70
## 9                       75            6        Normal         120/80         70
## 10                      75            6        Normal         120/80         70
## 11                      75            6        Normal         120/80         70
## 12                      75            6        Normal         120/80         70
## 13                      75            6        Normal         120/80         70
## 14                      75            6        Normal         120/80         70
## 15                      75            6        Normal         120/80         70
## 16                      75            6        Normal         120/80         70
## 17                      75            6        Normal         120/80         70
## 18                      75            6        Normal         120/80         70
## 19                      75            6        Normal         120/80         70
## 20                      75            6        Normal         120/80         70
## 21                      75            6        Normal         120/80         70
## 22                      75            6        Normal         120/80         70
## 23                      75            6        Normal         120/80         70
## 24                      75            6        Normal         120/80         70
## 25                      75            6        Normal         120/80         70
## 26                      75            6        Normal         120/80         70
## 27                      75            6        Normal         120/80         70
## 28                      75            6        Normal         120/80         70
## 29                      75            6        Normal         120/80         70
## 30                      75            6        Normal         120/80         70
## 31                      75            6        Normal         120/80         70
## 32                      75            6        Normal         120/80         70
## 33                      50            6 Normal Weight         118/76         68
##    Daily.Steps Sleep.Disorder
## 1         8000           None
## 2         8000           None
## 3         8000           None
## 4         8000           None
## 5         8000           None
## 6         8000           None
## 7         8000           None
## 8         8000           None
## 9         8000           None
## 10        8000           None
## 11        8000           None
## 12        8000           None
## 13        8000           None
## 14        8000           None
## 15        8000           None
## 16        8000           None
## 17        8000           None
## 18        8000           None
## 19        8000           None
## 20        8000           None
## 21        8000           None
## 22        8000           None
## 23        8000           None
## 24        8000           None
## 25        8000           None
## 26        8000           None
## 27        8000           None
## 28        8000           None
## 29        8000    Sleep Apnea
## 30        8000           None
## 31        8000           None
## 32        8000           None
## 33        7000           None

Identify the dependent & independent variables and use reshaping techniques and create a new data frame by joining those variables from your dataset.

ID=Sleep$Person.ID
Duration=Sleep$Sleep.Duration #independent variable
Stress=Sleep$Stress.Level #dependent variable
DurationStress=cbind(ID,Duration,Stress)
DurationStress=as.data.frame(DurationStress)
DurationStress
##    ID Duration Stress
## 1   1      6.1      6
## 2   2      6.2      8
## 3   3      6.2      8
## 4   4      5.9      8
## 5   5      5.9      8
## 6   6      5.9      8
## 7   7      6.3      7
## 8   8      7.8      6
## 9   9      7.8      6
## 10 10      7.8      6
## 11 11      6.1      8
## 12 12      7.8      6
## 13 13      6.1      8
## 14 14      6.0      8
## 15 15      6.0      8
## 16 16      6.0      8
## 17 17      6.5      7
## 18 18      6.0      8
## 19 19      6.5      7
## 20 20      7.6      6
## 21 21      7.7      6
## 22 22      7.7      6
## 23 23      7.7      6
## 24 24      7.7      6
## 25 25      7.8      6
## 26 26      7.9      6
## 27 27      7.8      6
## 28 28      7.9      6
## 29 29      7.9      6
## 30 30      7.9      6
## 31 31      6.4      7
## 32 32      6.4      7
## 33 33      7.9      4
## 34 34      6.1      8
## 35 35      7.7      6
## 36 36      6.1      8
## 37 37      6.1      8
## 38 38      7.6      6
## 39 39      7.6      6
## 40 40      7.6      6
## 41 41      7.7      6
## 42 42      7.7      6
## 43 43      7.7      6
## 44 44      7.8      6
## 45 45      7.7      6
## 46 46      7.8      6
## 47 47      7.7      6
## 48 48      7.8      6
## 49 49      7.7      6
## 50 50      7.7      6
## 51 51      7.5      3
## 52 52      7.5      3
## 53 53      6.0      8
## 54 54      7.6      6
## 55 55      6.0      8
## 56 56      6.0      8
## 57 57      7.7      6
## 58 58      6.0      8
## 59 59      6.0      8
## 60 60      7.7      6
## 61 61      6.0      8
## 62 62      6.0      8
## 63 63      6.2      8
## 64 64      6.2      8
## 65 65      6.2      8
## 66 66      6.2      8
## 67 67      7.2      6
## 68 68      6.0      8
## 69 69      6.2      6
## 70 70      6.2      6
## 71 71      6.1      8
## 72 72      6.1      8
## 73 73      6.1      8
## 74 74      6.1      8
## 75 75      6.0      8
## 76 76      6.0      8
## 77 77      6.0      8
## 78 78      6.0      8
## 79 79      6.0      8
## 80 80      6.0      8
## 81 81      5.8      8
## 82 82      5.8      8
## 83 83      6.7      5
## 84 84      6.7      5
## 85 85      7.5      5
## 86 86      7.2      4
## 87 87      7.2      4
## 88 88      7.2      4
## 89 89      7.3      4
## 90 90      7.3      4
## 91 91      7.3      4
## 92 92      7.3      4
## 93 93      7.5      5
## 94 94      7.4      5
## 95 95      7.2      4
## 96 96      7.1      4
## 97 97      7.2      4
## 98 98      7.1      4
## 99 99      7.1      4

Remove missing values in your dataset.

RemovedDataset=na.omit(Sleep) #remove rows with missing values in dataset
RemovedDataset
##    Person.ID Gender Age           Occupation Sleep.Duration Quality.of.Sleep
## 1          1   Male  27    Software Engineer            6.1                6
## 2          2   Male  28               Doctor            6.2                6
## 3          3   Male  28               Doctor            6.2                6
## 4          4   Male  28 Sales Representative            5.9                4
## 5          5   Male  28 Sales Representative            5.9                4
## 6          6   Male  28    Software Engineer            5.9                4
## 7          7   Male  29              Teacher            6.3                6
## 8          8   Male  29               Doctor            7.8                7
## 9          9   Male  29               Doctor            7.8                7
## 10        10   Male  29               Doctor            7.8                7
## 11        11   Male  29               Doctor            6.1                6
## 12        12   Male  29               Doctor            7.8                7
## 13        13   Male  29               Doctor            6.1                6
## 14        14   Male  29               Doctor            6.0                6
## 15        15   Male  29               Doctor            6.0                6
## 16        16   Male  29               Doctor            6.0                6
## 17        17 Female  29                Nurse            6.5                5
## 18        18   Male  29               Doctor            6.0                6
## 19        19 Female  29                Nurse            6.5                5
## 20        20   Male  30               Doctor            7.6                7
## 21        21   Male  30               Doctor            7.7                7
## 22        22   Male  30               Doctor            7.7                7
## 23        23   Male  30               Doctor            7.7                7
## 24        24   Male  30               Doctor            7.7                7
## 25        25   Male  30               Doctor            7.8                7
## 26        26   Male  30               Doctor            7.9                7
## 27        27   Male  30               Doctor            7.8                7
## 28        28   Male  30               Doctor            7.9                7
## 29        29   Male  30               Doctor            7.9                7
## 30        30   Male  30               Doctor            7.9                7
## 31        31 Female  30                Nurse            6.4                5
## 32        32 Female  30                Nurse            6.4                5
## 33        33 Female  31                Nurse            7.9                8
## 34        34   Male  31               Doctor            6.1                6
## 35        35   Male  31               Doctor            7.7                7
## 36        36   Male  31               Doctor            6.1                6
## 37        37   Male  31               Doctor            6.1                6
## 38        38   Male  31               Doctor            7.6                7
## 39        39   Male  31               Doctor            7.6                7
## 40        40   Male  31               Doctor            7.6                7
## 41        41   Male  31               Doctor            7.7                7
## 42        42   Male  31               Doctor            7.7                7
## 43        43   Male  31               Doctor            7.7                7
## 44        44   Male  31               Doctor            7.8                7
## 45        45   Male  31               Doctor            7.7                7
## 46        46   Male  31               Doctor            7.8                7
## 47        47   Male  31               Doctor            7.7                7
## 48        48   Male  31               Doctor            7.8                7
## 49        49   Male  31               Doctor            7.7                7
## 50        50   Male  31               Doctor            7.7                7
## 51        51   Male  32             Engineer            7.5                8
## 52        52   Male  32             Engineer            7.5                8
## 53        53   Male  32               Doctor            6.0                6
## 54        54   Male  32               Doctor            7.6                7
## 55        55   Male  32               Doctor            6.0                6
## 56        56   Male  32               Doctor            6.0                6
## 57        57   Male  32               Doctor            7.7                7
## 58        58   Male  32               Doctor            6.0                6
## 59        59   Male  32               Doctor            6.0                6
## 60        60   Male  32               Doctor            7.7                7
## 61        61   Male  32               Doctor            6.0                6
## 62        62   Male  32               Doctor            6.0                6
## 63        63   Male  32               Doctor            6.2                6
## 64        64   Male  32               Doctor            6.2                6
## 65        65   Male  32               Doctor            6.2                6
## 66        66   Male  32               Doctor            6.2                6
## 67        67   Male  32           Accountant            7.2                8
## 68        68   Male  33               Doctor            6.0                6
## 69        69 Female  33            Scientist            6.2                6
## 70        70 Female  33            Scientist            6.2                6
## 71        71   Male  33               Doctor            6.1                6
## 72        72   Male  33               Doctor            6.1                6
## 73        73   Male  33               Doctor            6.1                6
## 74        74   Male  33               Doctor            6.1                6
## 75        75   Male  33               Doctor            6.0                6
## 76        76   Male  33               Doctor            6.0                6
## 77        77   Male  33               Doctor            6.0                6
## 78        78   Male  33               Doctor            6.0                6
## 79        79   Male  33               Doctor            6.0                6
## 80        80   Male  33               Doctor            6.0                6
## 81        81 Female  34            Scientist            5.8                4
## 82        82 Female  34            Scientist            5.8                4
## 83        83   Male  35              Teacher            6.7                7
## 84        84   Male  35              Teacher            6.7                7
## 85        85   Male  35    Software Engineer            7.5                8
## 86        86 Female  35           Accountant            7.2                8
## 87        87   Male  35             Engineer            7.2                8
## 88        88   Male  35             Engineer            7.2                8
## 89        89   Male  35             Engineer            7.3                8
## 90        90   Male  35             Engineer            7.3                8
## 91        91   Male  35             Engineer            7.3                8
## 92        92   Male  35             Engineer            7.3                8
## 93        93   Male  35    Software Engineer            7.5                8
## 94        94   Male  35               Lawyer            7.4                7
## 95        95 Female  36           Accountant            7.2                8
## 96        96 Female  36           Accountant            7.1                8
## 97        97 Female  36           Accountant            7.2                8
## 98        98 Female  36           Accountant            7.1                8
## 99        99 Female  36              Teacher            7.1                8
##    Physical.Activity.Level Stress.Level  BMI.Category Blood.Pressure Heart.Rate
## 1                       42            6    Overweight         126/83         77
## 2                       60            8        Normal         125/80         75
## 3                       60            8        Normal         125/80         75
## 4                       30            8         Obese         140/90         85
## 5                       30            8         Obese         140/90         85
## 6                       30            8         Obese         140/90         85
## 7                       40            7         Obese         140/90         82
## 8                       75            6        Normal         120/80         70
## 9                       75            6        Normal         120/80         70
## 10                      75            6        Normal         120/80         70
## 11                      30            8        Normal         120/80         70
## 12                      75            6        Normal         120/80         70
## 13                      30            8        Normal         120/80         70
## 14                      30            8        Normal         120/80         70
## 15                      30            8        Normal         120/80         70
## 16                      30            8        Normal         120/80         70
## 17                      40            7 Normal Weight         132/87         80
## 18                      30            8        Normal         120/80         70
## 19                      40            7 Normal Weight         132/87         80
## 20                      75            6        Normal         120/80         70
## 21                      75            6        Normal         120/80         70
## 22                      75            6        Normal         120/80         70
## 23                      75            6        Normal         120/80         70
## 24                      75            6        Normal         120/80         70
## 25                      75            6        Normal         120/80         70
## 26                      75            6        Normal         120/80         70
## 27                      75            6        Normal         120/80         70
## 28                      75            6        Normal         120/80         70
## 29                      75            6        Normal         120/80         70
## 30                      75            6        Normal         120/80         70
## 31                      35            7 Normal Weight         130/86         78
## 32                      35            7 Normal Weight         130/86         78
## 33                      75            4 Normal Weight         117/76         69
## 34                      30            8        Normal         125/80         72
## 35                      75            6        Normal         120/80         70
## 36                      30            8        Normal         125/80         72
## 37                      30            8        Normal         125/80         72
## 38                      75            6        Normal         120/80         70
## 39                      75            6        Normal         120/80         70
## 40                      75            6        Normal         120/80         70
## 41                      75            6        Normal         120/80         70
## 42                      75            6        Normal         120/80         70
## 43                      75            6        Normal         120/80         70
## 44                      75            6        Normal         120/80         70
## 45                      75            6        Normal         120/80         70
## 46                      75            6        Normal         120/80         70
## 47                      75            6        Normal         120/80         70
## 48                      75            6        Normal         120/80         70
## 49                      75            6        Normal         120/80         70
## 50                      75            6        Normal         120/80         70
## 51                      45            3        Normal         120/80         70
## 52                      45            3        Normal         120/80         70
## 53                      30            8        Normal         125/80         72
## 54                      75            6        Normal         120/80         70
## 55                      30            8        Normal         125/80         72
## 56                      30            8        Normal         125/80         72
## 57                      75            6        Normal         120/80         70
## 58                      30            8        Normal         125/80         72
## 59                      30            8        Normal         125/80         72
## 60                      75            6        Normal         120/80         70
## 61                      30            8        Normal         125/80         72
## 62                      30            8        Normal         125/80         72
## 63                      30            8        Normal         125/80         72
## 64                      30            8        Normal         125/80         72
## 65                      30            8        Normal         125/80         72
## 66                      30            8        Normal         125/80         72
## 67                      50            6 Normal Weight         118/76         68
## 68                      30            8        Normal         125/80         72
## 69                      50            6    Overweight         128/85         76
## 70                      50            6    Overweight         128/85         76
## 71                      30            8        Normal         125/80         72
## 72                      30            8        Normal         125/80         72
## 73                      30            8        Normal         125/80         72
## 74                      30            8        Normal         125/80         72
## 75                      30            8        Normal         125/80         72
## 76                      30            8        Normal         125/80         72
## 77                      30            8        Normal         125/80         72
## 78                      30            8        Normal         125/80         72
## 79                      30            8        Normal         125/80         72
## 80                      30            8        Normal         125/80         72
## 81                      32            8    Overweight         131/86         81
## 82                      32            8    Overweight         131/86         81
## 83                      40            5    Overweight         128/84         70
## 84                      40            5    Overweight         128/84         70
## 85                      60            5 Normal Weight         120/80         70
## 86                      60            4        Normal         115/75         68
## 87                      60            4        Normal         125/80         65
## 88                      60            4        Normal         125/80         65
## 89                      60            4        Normal         125/80         65
## 90                      60            4        Normal         125/80         65
## 91                      60            4        Normal         125/80         65
## 92                      60            4        Normal         125/80         65
## 93                      60            5 Normal Weight         120/80         70
## 94                      60            5         Obese         135/88         84
## 95                      60            4        Normal         115/75         68
## 96                      60            4        Normal         115/75         68
## 97                      60            4        Normal         115/75         68
## 98                      60            4        Normal         115/75         68
## 99                      60            4        Normal         115/75         68
##    Daily.Steps Sleep.Disorder
## 1         4200           None
## 2        10000           None
## 3        10000           None
## 4         3000    Sleep Apnea
## 5         3000    Sleep Apnea
## 6         3000       Insomnia
## 7         3500       Insomnia
## 8         8000           None
## 9         8000           None
## 10        8000           None
## 11        8000           None
## 12        8000           None
## 13        8000           None
## 14        8000           None
## 15        8000           None
## 16        8000           None
## 17        4000    Sleep Apnea
## 18        8000    Sleep Apnea
## 19        4000       Insomnia
## 20        8000           None
## 21        8000           None
## 22        8000           None
## 23        8000           None
## 24        8000           None
## 25        8000           None
## 26        8000           None
## 27        8000           None
## 28        8000           None
## 29        8000           None
## 30        8000           None
## 31        4100    Sleep Apnea
## 32        4100       Insomnia
## 33        6800           None
## 34        5000           None
## 35        8000           None
## 36        5000           None
## 37        5000           None
## 38        8000           None
## 39        8000           None
## 40        8000           None
## 41        8000           None
## 42        8000           None
## 43        8000           None
## 44        8000           None
## 45        8000           None
## 46        8000           None
## 47        8000           None
## 48        8000           None
## 49        8000           None
## 50        8000    Sleep Apnea
## 51        8000           None
## 52        8000           None
## 53        5000           None
## 54        8000           None
## 55        5000           None
## 56        5000           None
## 57        8000           None
## 58        5000           None
## 59        5000           None
## 60        8000           None
## 61        5000           None
## 62        5000           None
## 63        5000           None
## 64        5000           None
## 65        5000           None
## 66        5000           None
## 67        7000           None
## 68        5000       Insomnia
## 69        5500           None
## 70        5500           None
## 71        5000           None
## 72        5000           None
## 73        5000           None
## 74        5000           None
## 75        5000           None
## 76        5000           None
## 77        5000           None
## 78        5000           None
## 79        5000           None
## 80        5000           None
## 81        5200    Sleep Apnea
## 82        5200    Sleep Apnea
## 83        5600           None
## 84        5600           None
## 85        8000           None
## 86        7000           None
## 87        5000           None
## 88        5000           None
## 89        5000           None
## 90        5000           None
## 91        5000           None
## 92        5000           None
## 93        8000           None
## 94        3300    Sleep Apnea
## 95        7000       Insomnia
## 96        7000           None
## 97        7000           None
## 98        7000           None
## 99        7000           None
RemovedStress=Sleep %>% filter(!is.na(Stress.Level)) #remove rows with missing values under Stress.Level
RemovedStress
##    Person.ID Gender Age           Occupation Sleep.Duration Quality.of.Sleep
## 1          1   Male  27    Software Engineer            6.1                6
## 2          2   Male  28               Doctor            6.2                6
## 3          3   Male  28               Doctor            6.2                6
## 4          4   Male  28 Sales Representative            5.9                4
## 5          5   Male  28 Sales Representative            5.9                4
## 6          6   Male  28    Software Engineer            5.9                4
## 7          7   Male  29              Teacher            6.3                6
## 8          8   Male  29               Doctor            7.8                7
## 9          9   Male  29               Doctor            7.8                7
## 10        10   Male  29               Doctor            7.8                7
## 11        11   Male  29               Doctor            6.1                6
## 12        12   Male  29               Doctor            7.8                7
## 13        13   Male  29               Doctor            6.1                6
## 14        14   Male  29               Doctor            6.0                6
## 15        15   Male  29               Doctor            6.0                6
## 16        16   Male  29               Doctor            6.0                6
## 17        17 Female  29                Nurse            6.5                5
## 18        18   Male  29               Doctor            6.0                6
## 19        19 Female  29                Nurse            6.5                5
## 20        20   Male  30               Doctor            7.6                7
## 21        21   Male  30               Doctor            7.7                7
## 22        22   Male  30               Doctor            7.7                7
## 23        23   Male  30               Doctor            7.7                7
## 24        24   Male  30               Doctor            7.7                7
## 25        25   Male  30               Doctor            7.8                7
## 26        26   Male  30               Doctor            7.9                7
## 27        27   Male  30               Doctor            7.8                7
## 28        28   Male  30               Doctor            7.9                7
## 29        29   Male  30               Doctor            7.9                7
## 30        30   Male  30               Doctor            7.9                7
## 31        31 Female  30                Nurse            6.4                5
## 32        32 Female  30                Nurse            6.4                5
## 33        33 Female  31                Nurse            7.9                8
## 34        34   Male  31               Doctor            6.1                6
## 35        35   Male  31               Doctor            7.7                7
## 36        36   Male  31               Doctor            6.1                6
## 37        37   Male  31               Doctor            6.1                6
## 38        38   Male  31               Doctor            7.6                7
## 39        39   Male  31               Doctor            7.6                7
## 40        40   Male  31               Doctor            7.6                7
## 41        41   Male  31               Doctor            7.7                7
## 42        42   Male  31               Doctor            7.7                7
## 43        43   Male  31               Doctor            7.7                7
## 44        44   Male  31               Doctor            7.8                7
## 45        45   Male  31               Doctor            7.7                7
## 46        46   Male  31               Doctor            7.8                7
## 47        47   Male  31               Doctor            7.7                7
## 48        48   Male  31               Doctor            7.8                7
## 49        49   Male  31               Doctor            7.7                7
## 50        50   Male  31               Doctor            7.7                7
## 51        51   Male  32             Engineer            7.5                8
## 52        52   Male  32             Engineer            7.5                8
## 53        53   Male  32               Doctor            6.0                6
## 54        54   Male  32               Doctor            7.6                7
## 55        55   Male  32               Doctor            6.0                6
## 56        56   Male  32               Doctor            6.0                6
## 57        57   Male  32               Doctor            7.7                7
## 58        58   Male  32               Doctor            6.0                6
## 59        59   Male  32               Doctor            6.0                6
## 60        60   Male  32               Doctor            7.7                7
## 61        61   Male  32               Doctor            6.0                6
## 62        62   Male  32               Doctor            6.0                6
## 63        63   Male  32               Doctor            6.2                6
## 64        64   Male  32               Doctor            6.2                6
## 65        65   Male  32               Doctor            6.2                6
## 66        66   Male  32               Doctor            6.2                6
## 67        67   Male  32           Accountant            7.2                8
## 68        68   Male  33               Doctor            6.0                6
## 69        69 Female  33            Scientist            6.2                6
## 70        70 Female  33            Scientist            6.2                6
## 71        71   Male  33               Doctor            6.1                6
## 72        72   Male  33               Doctor            6.1                6
## 73        73   Male  33               Doctor            6.1                6
## 74        74   Male  33               Doctor            6.1                6
## 75        75   Male  33               Doctor            6.0                6
## 76        76   Male  33               Doctor            6.0                6
## 77        77   Male  33               Doctor            6.0                6
## 78        78   Male  33               Doctor            6.0                6
## 79        79   Male  33               Doctor            6.0                6
## 80        80   Male  33               Doctor            6.0                6
## 81        81 Female  34            Scientist            5.8                4
## 82        82 Female  34            Scientist            5.8                4
## 83        83   Male  35              Teacher            6.7                7
## 84        84   Male  35              Teacher            6.7                7
## 85        85   Male  35    Software Engineer            7.5                8
## 86        86 Female  35           Accountant            7.2                8
## 87        87   Male  35             Engineer            7.2                8
## 88        88   Male  35             Engineer            7.2                8
## 89        89   Male  35             Engineer            7.3                8
## 90        90   Male  35             Engineer            7.3                8
## 91        91   Male  35             Engineer            7.3                8
## 92        92   Male  35             Engineer            7.3                8
## 93        93   Male  35    Software Engineer            7.5                8
## 94        94   Male  35               Lawyer            7.4                7
## 95        95 Female  36           Accountant            7.2                8
## 96        96 Female  36           Accountant            7.1                8
## 97        97 Female  36           Accountant            7.2                8
## 98        98 Female  36           Accountant            7.1                8
## 99        99 Female  36              Teacher            7.1                8
##    Physical.Activity.Level Stress.Level  BMI.Category Blood.Pressure Heart.Rate
## 1                       42            6    Overweight         126/83         77
## 2                       60            8        Normal         125/80         75
## 3                       60            8        Normal         125/80         75
## 4                       30            8         Obese         140/90         85
## 5                       30            8         Obese         140/90         85
## 6                       30            8         Obese         140/90         85
## 7                       40            7         Obese         140/90         82
## 8                       75            6        Normal         120/80         70
## 9                       75            6        Normal         120/80         70
## 10                      75            6        Normal         120/80         70
## 11                      30            8        Normal         120/80         70
## 12                      75            6        Normal         120/80         70
## 13                      30            8        Normal         120/80         70
## 14                      30            8        Normal         120/80         70
## 15                      30            8        Normal         120/80         70
## 16                      30            8        Normal         120/80         70
## 17                      40            7 Normal Weight         132/87         80
## 18                      30            8        Normal         120/80         70
## 19                      40            7 Normal Weight         132/87         80
## 20                      75            6        Normal         120/80         70
## 21                      75            6        Normal         120/80         70
## 22                      75            6        Normal         120/80         70
## 23                      75            6        Normal         120/80         70
## 24                      75            6        Normal         120/80         70
## 25                      75            6        Normal         120/80         70
## 26                      75            6        Normal         120/80         70
## 27                      75            6        Normal         120/80         70
## 28                      75            6        Normal         120/80         70
## 29                      75            6        Normal         120/80         70
## 30                      75            6        Normal         120/80         70
## 31                      35            7 Normal Weight         130/86         78
## 32                      35            7 Normal Weight         130/86         78
## 33                      75            4 Normal Weight         117/76         69
## 34                      30            8        Normal         125/80         72
## 35                      75            6        Normal         120/80         70
## 36                      30            8        Normal         125/80         72
## 37                      30            8        Normal         125/80         72
## 38                      75            6        Normal         120/80         70
## 39                      75            6        Normal         120/80         70
## 40                      75            6        Normal         120/80         70
## 41                      75            6        Normal         120/80         70
## 42                      75            6        Normal         120/80         70
## 43                      75            6        Normal         120/80         70
## 44                      75            6        Normal         120/80         70
## 45                      75            6        Normal         120/80         70
## 46                      75            6        Normal         120/80         70
## 47                      75            6        Normal         120/80         70
## 48                      75            6        Normal         120/80         70
## 49                      75            6        Normal         120/80         70
## 50                      75            6        Normal         120/80         70
## 51                      45            3        Normal         120/80         70
## 52                      45            3        Normal         120/80         70
## 53                      30            8        Normal         125/80         72
## 54                      75            6        Normal         120/80         70
## 55                      30            8        Normal         125/80         72
## 56                      30            8        Normal         125/80         72
## 57                      75            6        Normal         120/80         70
## 58                      30            8        Normal         125/80         72
## 59                      30            8        Normal         125/80         72
## 60                      75            6        Normal         120/80         70
## 61                      30            8        Normal         125/80         72
## 62                      30            8        Normal         125/80         72
## 63                      30            8        Normal         125/80         72
## 64                      30            8        Normal         125/80         72
## 65                      30            8        Normal         125/80         72
## 66                      30            8        Normal         125/80         72
## 67                      50            6 Normal Weight         118/76         68
## 68                      30            8        Normal         125/80         72
## 69                      50            6    Overweight         128/85         76
## 70                      50            6    Overweight         128/85         76
## 71                      30            8        Normal         125/80         72
## 72                      30            8        Normal         125/80         72
## 73                      30            8        Normal         125/80         72
## 74                      30            8        Normal         125/80         72
## 75                      30            8        Normal         125/80         72
## 76                      30            8        Normal         125/80         72
## 77                      30            8        Normal         125/80         72
## 78                      30            8        Normal         125/80         72
## 79                      30            8        Normal         125/80         72
## 80                      30            8        Normal         125/80         72
## 81                      32            8    Overweight         131/86         81
## 82                      32            8    Overweight         131/86         81
## 83                      40            5    Overweight         128/84         70
## 84                      40            5    Overweight         128/84         70
## 85                      60            5 Normal Weight         120/80         70
## 86                      60            4        Normal         115/75         68
## 87                      60            4        Normal         125/80         65
## 88                      60            4        Normal         125/80         65
## 89                      60            4        Normal         125/80         65
## 90                      60            4        Normal         125/80         65
## 91                      60            4        Normal         125/80         65
## 92                      60            4        Normal         125/80         65
## 93                      60            5 Normal Weight         120/80         70
## 94                      60            5         Obese         135/88         84
## 95                      60            4        Normal         115/75         68
## 96                      60            4        Normal         115/75         68
## 97                      60            4        Normal         115/75         68
## 98                      60            4        Normal         115/75         68
## 99                      60            4        Normal         115/75         68
##    Daily.Steps Sleep.Disorder
## 1         4200           None
## 2        10000           None
## 3        10000           None
## 4         3000    Sleep Apnea
## 5         3000    Sleep Apnea
## 6         3000       Insomnia
## 7         3500       Insomnia
## 8         8000           None
## 9         8000           None
## 10        8000           None
## 11        8000           None
## 12        8000           None
## 13        8000           None
## 14        8000           None
## 15        8000           None
## 16        8000           None
## 17        4000    Sleep Apnea
## 18        8000    Sleep Apnea
## 19        4000       Insomnia
## 20        8000           None
## 21        8000           None
## 22        8000           None
## 23        8000           None
## 24        8000           None
## 25        8000           None
## 26        8000           None
## 27        8000           None
## 28        8000           None
## 29        8000           None
## 30        8000           None
## 31        4100    Sleep Apnea
## 32        4100       Insomnia
## 33        6800           None
## 34        5000           None
## 35        8000           None
## 36        5000           None
## 37        5000           None
## 38        8000           None
## 39        8000           None
## 40        8000           None
## 41        8000           None
## 42        8000           None
## 43        8000           None
## 44        8000           None
## 45        8000           None
## 46        8000           None
## 47        8000           None
## 48        8000           None
## 49        8000           None
## 50        8000    Sleep Apnea
## 51        8000           None
## 52        8000           None
## 53        5000           None
## 54        8000           None
## 55        5000           None
## 56        5000           None
## 57        8000           None
## 58        5000           None
## 59        5000           None
## 60        8000           None
## 61        5000           None
## 62        5000           None
## 63        5000           None
## 64        5000           None
## 65        5000           None
## 66        5000           None
## 67        7000           None
## 68        5000       Insomnia
## 69        5500           None
## 70        5500           None
## 71        5000           None
## 72        5000           None
## 73        5000           None
## 74        5000           None
## 75        5000           None
## 76        5000           None
## 77        5000           None
## 78        5000           None
## 79        5000           None
## 80        5000           None
## 81        5200    Sleep Apnea
## 82        5200    Sleep Apnea
## 83        5600           None
## 84        5600           None
## 85        8000           None
## 86        7000           None
## 87        5000           None
## 88        5000           None
## 89        5000           None
## 90        5000           None
## 91        5000           None
## 92        5000           None
## 93        8000           None
## 94        3300    Sleep Apnea
## 95        7000       Insomnia
## 96        7000           None
## 97        7000           None
## 98        7000           None
## 99        7000           None

Identify and remove duplicated data from your dataset.

duplicated(Sleep) #identify duplicated data
##  [1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
## [13] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
## [25] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
## [37] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
## [49] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
## [61] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
## [73] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
## [85] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
## [97] FALSE FALSE FALSE
Sleep[!duplicated(Sleep), ] #remove duplicated data
##    Person.ID Gender Age           Occupation Sleep.Duration Quality.of.Sleep
## 1          1   Male  27    Software Engineer            6.1                6
## 2          2   Male  28               Doctor            6.2                6
## 3          3   Male  28               Doctor            6.2                6
## 4          4   Male  28 Sales Representative            5.9                4
## 5          5   Male  28 Sales Representative            5.9                4
## 6          6   Male  28    Software Engineer            5.9                4
## 7          7   Male  29              Teacher            6.3                6
## 8          8   Male  29               Doctor            7.8                7
## 9          9   Male  29               Doctor            7.8                7
## 10        10   Male  29               Doctor            7.8                7
## 11        11   Male  29               Doctor            6.1                6
## 12        12   Male  29               Doctor            7.8                7
## 13        13   Male  29               Doctor            6.1                6
## 14        14   Male  29               Doctor            6.0                6
## 15        15   Male  29               Doctor            6.0                6
## 16        16   Male  29               Doctor            6.0                6
## 17        17 Female  29                Nurse            6.5                5
## 18        18   Male  29               Doctor            6.0                6
## 19        19 Female  29                Nurse            6.5                5
## 20        20   Male  30               Doctor            7.6                7
## 21        21   Male  30               Doctor            7.7                7
## 22        22   Male  30               Doctor            7.7                7
## 23        23   Male  30               Doctor            7.7                7
## 24        24   Male  30               Doctor            7.7                7
## 25        25   Male  30               Doctor            7.8                7
## 26        26   Male  30               Doctor            7.9                7
## 27        27   Male  30               Doctor            7.8                7
## 28        28   Male  30               Doctor            7.9                7
## 29        29   Male  30               Doctor            7.9                7
## 30        30   Male  30               Doctor            7.9                7
## 31        31 Female  30                Nurse            6.4                5
## 32        32 Female  30                Nurse            6.4                5
## 33        33 Female  31                Nurse            7.9                8
## 34        34   Male  31               Doctor            6.1                6
## 35        35   Male  31               Doctor            7.7                7
## 36        36   Male  31               Doctor            6.1                6
## 37        37   Male  31               Doctor            6.1                6
## 38        38   Male  31               Doctor            7.6                7
## 39        39   Male  31               Doctor            7.6                7
## 40        40   Male  31               Doctor            7.6                7
## 41        41   Male  31               Doctor            7.7                7
## 42        42   Male  31               Doctor            7.7                7
## 43        43   Male  31               Doctor            7.7                7
## 44        44   Male  31               Doctor            7.8                7
## 45        45   Male  31               Doctor            7.7                7
## 46        46   Male  31               Doctor            7.8                7
## 47        47   Male  31               Doctor            7.7                7
## 48        48   Male  31               Doctor            7.8                7
## 49        49   Male  31               Doctor            7.7                7
## 50        50   Male  31               Doctor            7.7                7
## 51        51   Male  32             Engineer            7.5                8
## 52        52   Male  32             Engineer            7.5                8
## 53        53   Male  32               Doctor            6.0                6
## 54        54   Male  32               Doctor            7.6                7
## 55        55   Male  32               Doctor            6.0                6
## 56        56   Male  32               Doctor            6.0                6
## 57        57   Male  32               Doctor            7.7                7
## 58        58   Male  32               Doctor            6.0                6
## 59        59   Male  32               Doctor            6.0                6
## 60        60   Male  32               Doctor            7.7                7
## 61        61   Male  32               Doctor            6.0                6
## 62        62   Male  32               Doctor            6.0                6
## 63        63   Male  32               Doctor            6.2                6
## 64        64   Male  32               Doctor            6.2                6
## 65        65   Male  32               Doctor            6.2                6
## 66        66   Male  32               Doctor            6.2                6
## 67        67   Male  32           Accountant            7.2                8
## 68        68   Male  33               Doctor            6.0                6
## 69        69 Female  33            Scientist            6.2                6
## 70        70 Female  33            Scientist            6.2                6
## 71        71   Male  33               Doctor            6.1                6
## 72        72   Male  33               Doctor            6.1                6
## 73        73   Male  33               Doctor            6.1                6
## 74        74   Male  33               Doctor            6.1                6
## 75        75   Male  33               Doctor            6.0                6
## 76        76   Male  33               Doctor            6.0                6
## 77        77   Male  33               Doctor            6.0                6
## 78        78   Male  33               Doctor            6.0                6
## 79        79   Male  33               Doctor            6.0                6
## 80        80   Male  33               Doctor            6.0                6
## 81        81 Female  34            Scientist            5.8                4
## 82        82 Female  34            Scientist            5.8                4
## 83        83   Male  35              Teacher            6.7                7
## 84        84   Male  35              Teacher            6.7                7
## 85        85   Male  35    Software Engineer            7.5                8
## 86        86 Female  35           Accountant            7.2                8
## 87        87   Male  35             Engineer            7.2                8
## 88        88   Male  35             Engineer            7.2                8
## 89        89   Male  35             Engineer            7.3                8
## 90        90   Male  35             Engineer            7.3                8
## 91        91   Male  35             Engineer            7.3                8
## 92        92   Male  35             Engineer            7.3                8
## 93        93   Male  35    Software Engineer            7.5                8
## 94        94   Male  35               Lawyer            7.4                7
## 95        95 Female  36           Accountant            7.2                8
## 96        96 Female  36           Accountant            7.1                8
## 97        97 Female  36           Accountant            7.2                8
## 98        98 Female  36           Accountant            7.1                8
## 99        99 Female  36              Teacher            7.1                8
##    Physical.Activity.Level Stress.Level  BMI.Category Blood.Pressure Heart.Rate
## 1                       42            6    Overweight         126/83         77
## 2                       60            8        Normal         125/80         75
## 3                       60            8        Normal         125/80         75
## 4                       30            8         Obese         140/90         85
## 5                       30            8         Obese         140/90         85
## 6                       30            8         Obese         140/90         85
## 7                       40            7         Obese         140/90         82
## 8                       75            6        Normal         120/80         70
## 9                       75            6        Normal         120/80         70
## 10                      75            6        Normal         120/80         70
## 11                      30            8        Normal         120/80         70
## 12                      75            6        Normal         120/80         70
## 13                      30            8        Normal         120/80         70
## 14                      30            8        Normal         120/80         70
## 15                      30            8        Normal         120/80         70
## 16                      30            8        Normal         120/80         70
## 17                      40            7 Normal Weight         132/87         80
## 18                      30            8        Normal         120/80         70
## 19                      40            7 Normal Weight         132/87         80
## 20                      75            6        Normal         120/80         70
## 21                      75            6        Normal         120/80         70
## 22                      75            6        Normal         120/80         70
## 23                      75            6        Normal         120/80         70
## 24                      75            6        Normal         120/80         70
## 25                      75            6        Normal         120/80         70
## 26                      75            6        Normal         120/80         70
## 27                      75            6        Normal         120/80         70
## 28                      75            6        Normal         120/80         70
## 29                      75            6        Normal         120/80         70
## 30                      75            6        Normal         120/80         70
## 31                      35            7 Normal Weight         130/86         78
## 32                      35            7 Normal Weight         130/86         78
## 33                      75            4 Normal Weight         117/76         69
## 34                      30            8        Normal         125/80         72
## 35                      75            6        Normal         120/80         70
## 36                      30            8        Normal         125/80         72
## 37                      30            8        Normal         125/80         72
## 38                      75            6        Normal         120/80         70
## 39                      75            6        Normal         120/80         70
## 40                      75            6        Normal         120/80         70
## 41                      75            6        Normal         120/80         70
## 42                      75            6        Normal         120/80         70
## 43                      75            6        Normal         120/80         70
## 44                      75            6        Normal         120/80         70
## 45                      75            6        Normal         120/80         70
## 46                      75            6        Normal         120/80         70
## 47                      75            6        Normal         120/80         70
## 48                      75            6        Normal         120/80         70
## 49                      75            6        Normal         120/80         70
## 50                      75            6        Normal         120/80         70
## 51                      45            3        Normal         120/80         70
## 52                      45            3        Normal         120/80         70
## 53                      30            8        Normal         125/80         72
## 54                      75            6        Normal         120/80         70
## 55                      30            8        Normal         125/80         72
## 56                      30            8        Normal         125/80         72
## 57                      75            6        Normal         120/80         70
## 58                      30            8        Normal         125/80         72
## 59                      30            8        Normal         125/80         72
## 60                      75            6        Normal         120/80         70
## 61                      30            8        Normal         125/80         72
## 62                      30            8        Normal         125/80         72
## 63                      30            8        Normal         125/80         72
## 64                      30            8        Normal         125/80         72
## 65                      30            8        Normal         125/80         72
## 66                      30            8        Normal         125/80         72
## 67                      50            6 Normal Weight         118/76         68
## 68                      30            8        Normal         125/80         72
## 69                      50            6    Overweight         128/85         76
## 70                      50            6    Overweight         128/85         76
## 71                      30            8        Normal         125/80         72
## 72                      30            8        Normal         125/80         72
## 73                      30            8        Normal         125/80         72
## 74                      30            8        Normal         125/80         72
## 75                      30            8        Normal         125/80         72
## 76                      30            8        Normal         125/80         72
## 77                      30            8        Normal         125/80         72
## 78                      30            8        Normal         125/80         72
## 79                      30            8        Normal         125/80         72
## 80                      30            8        Normal         125/80         72
## 81                      32            8    Overweight         131/86         81
## 82                      32            8    Overweight         131/86         81
## 83                      40            5    Overweight         128/84         70
## 84                      40            5    Overweight         128/84         70
## 85                      60            5 Normal Weight         120/80         70
## 86                      60            4        Normal         115/75         68
## 87                      60            4        Normal         125/80         65
## 88                      60            4        Normal         125/80         65
## 89                      60            4        Normal         125/80         65
## 90                      60            4        Normal         125/80         65
## 91                      60            4        Normal         125/80         65
## 92                      60            4        Normal         125/80         65
## 93                      60            5 Normal Weight         120/80         70
## 94                      60            5         Obese         135/88         84
## 95                      60            4        Normal         115/75         68
## 96                      60            4        Normal         115/75         68
## 97                      60            4        Normal         115/75         68
## 98                      60            4        Normal         115/75         68
## 99                      60            4        Normal         115/75         68
##    Daily.Steps Sleep.Disorder
## 1         4200           None
## 2        10000           None
## 3        10000           None
## 4         3000    Sleep Apnea
## 5         3000    Sleep Apnea
## 6         3000       Insomnia
## 7         3500       Insomnia
## 8         8000           None
## 9         8000           None
## 10        8000           None
## 11        8000           None
## 12        8000           None
## 13        8000           None
## 14        8000           None
## 15        8000           None
## 16        8000           None
## 17        4000    Sleep Apnea
## 18        8000    Sleep Apnea
## 19        4000       Insomnia
## 20        8000           None
## 21        8000           None
## 22        8000           None
## 23        8000           None
## 24        8000           None
## 25        8000           None
## 26        8000           None
## 27        8000           None
## 28        8000           None
## 29        8000           None
## 30        8000           None
## 31        4100    Sleep Apnea
## 32        4100       Insomnia
## 33        6800           None
## 34        5000           None
## 35        8000           None
## 36        5000           None
## 37        5000           None
## 38        8000           None
## 39        8000           None
## 40        8000           None
## 41        8000           None
## 42        8000           None
## 43        8000           None
## 44        8000           None
## 45        8000           None
## 46        8000           None
## 47        8000           None
## 48        8000           None
## 49        8000           None
## 50        8000    Sleep Apnea
## 51        8000           None
## 52        8000           None
## 53        5000           None
## 54        8000           None
## 55        5000           None
## 56        5000           None
## 57        8000           None
## 58        5000           None
## 59        5000           None
## 60        8000           None
## 61        5000           None
## 62        5000           None
## 63        5000           None
## 64        5000           None
## 65        5000           None
## 66        5000           None
## 67        7000           None
## 68        5000       Insomnia
## 69        5500           None
## 70        5500           None
## 71        5000           None
## 72        5000           None
## 73        5000           None
## 74        5000           None
## 75        5000           None
## 76        5000           None
## 77        5000           None
## 78        5000           None
## 79        5000           None
## 80        5000           None
## 81        5200    Sleep Apnea
## 82        5200    Sleep Apnea
## 83        5600           None
## 84        5600           None
## 85        8000           None
## 86        7000           None
## 87        5000           None
## 88        5000           None
## 89        5000           None
## 90        5000           None
## 91        5000           None
## 92        5000           None
## 93        8000           None
## 94        3300    Sleep Apnea
## 95        7000       Insomnia
## 96        7000           None
## 97        7000           None
## 98        7000           None
## 99        7000           None

Reorder multiple rows in descending order.

DesOrder=Sleep %>% arrange(desc(Person.ID))
DesOrder
##    Person.ID Gender Age           Occupation Sleep.Duration Quality.of.Sleep
## 1         99 Female  36              Teacher            7.1                8
## 2         98 Female  36           Accountant            7.1                8
## 3         97 Female  36           Accountant            7.2                8
## 4         96 Female  36           Accountant            7.1                8
## 5         95 Female  36           Accountant            7.2                8
## 6         94   Male  35               Lawyer            7.4                7
## 7         93   Male  35    Software Engineer            7.5                8
## 8         92   Male  35             Engineer            7.3                8
## 9         91   Male  35             Engineer            7.3                8
## 10        90   Male  35             Engineer            7.3                8
## 11        89   Male  35             Engineer            7.3                8
## 12        88   Male  35             Engineer            7.2                8
## 13        87   Male  35             Engineer            7.2                8
## 14        86 Female  35           Accountant            7.2                8
## 15        85   Male  35    Software Engineer            7.5                8
## 16        84   Male  35              Teacher            6.7                7
## 17        83   Male  35              Teacher            6.7                7
## 18        82 Female  34            Scientist            5.8                4
## 19        81 Female  34            Scientist            5.8                4
## 20        80   Male  33               Doctor            6.0                6
## 21        79   Male  33               Doctor            6.0                6
## 22        78   Male  33               Doctor            6.0                6
## 23        77   Male  33               Doctor            6.0                6
## 24        76   Male  33               Doctor            6.0                6
## 25        75   Male  33               Doctor            6.0                6
## 26        74   Male  33               Doctor            6.1                6
## 27        73   Male  33               Doctor            6.1                6
## 28        72   Male  33               Doctor            6.1                6
## 29        71   Male  33               Doctor            6.1                6
## 30        70 Female  33            Scientist            6.2                6
## 31        69 Female  33            Scientist            6.2                6
## 32        68   Male  33               Doctor            6.0                6
## 33        67   Male  32           Accountant            7.2                8
## 34        66   Male  32               Doctor            6.2                6
## 35        65   Male  32               Doctor            6.2                6
## 36        64   Male  32               Doctor            6.2                6
## 37        63   Male  32               Doctor            6.2                6
## 38        62   Male  32               Doctor            6.0                6
## 39        61   Male  32               Doctor            6.0                6
## 40        60   Male  32               Doctor            7.7                7
## 41        59   Male  32               Doctor            6.0                6
## 42        58   Male  32               Doctor            6.0                6
## 43        57   Male  32               Doctor            7.7                7
## 44        56   Male  32               Doctor            6.0                6
## 45        55   Male  32               Doctor            6.0                6
## 46        54   Male  32               Doctor            7.6                7
## 47        53   Male  32               Doctor            6.0                6
## 48        52   Male  32             Engineer            7.5                8
## 49        51   Male  32             Engineer            7.5                8
## 50        50   Male  31               Doctor            7.7                7
## 51        49   Male  31               Doctor            7.7                7
## 52        48   Male  31               Doctor            7.8                7
## 53        47   Male  31               Doctor            7.7                7
## 54        46   Male  31               Doctor            7.8                7
## 55        45   Male  31               Doctor            7.7                7
## 56        44   Male  31               Doctor            7.8                7
## 57        43   Male  31               Doctor            7.7                7
## 58        42   Male  31               Doctor            7.7                7
## 59        41   Male  31               Doctor            7.7                7
## 60        40   Male  31               Doctor            7.6                7
## 61        39   Male  31               Doctor            7.6                7
## 62        38   Male  31               Doctor            7.6                7
## 63        37   Male  31               Doctor            6.1                6
## 64        36   Male  31               Doctor            6.1                6
## 65        35   Male  31               Doctor            7.7                7
## 66        34   Male  31               Doctor            6.1                6
## 67        33 Female  31                Nurse            7.9                8
## 68        32 Female  30                Nurse            6.4                5
## 69        31 Female  30                Nurse            6.4                5
## 70        30   Male  30               Doctor            7.9                7
## 71        29   Male  30               Doctor            7.9                7
## 72        28   Male  30               Doctor            7.9                7
## 73        27   Male  30               Doctor            7.8                7
## 74        26   Male  30               Doctor            7.9                7
## 75        25   Male  30               Doctor            7.8                7
## 76        24   Male  30               Doctor            7.7                7
## 77        23   Male  30               Doctor            7.7                7
## 78        22   Male  30               Doctor            7.7                7
## 79        21   Male  30               Doctor            7.7                7
## 80        20   Male  30               Doctor            7.6                7
## 81        19 Female  29                Nurse            6.5                5
## 82        18   Male  29               Doctor            6.0                6
## 83        17 Female  29                Nurse            6.5                5
## 84        16   Male  29               Doctor            6.0                6
## 85        15   Male  29               Doctor            6.0                6
## 86        14   Male  29               Doctor            6.0                6
## 87        13   Male  29               Doctor            6.1                6
## 88        12   Male  29               Doctor            7.8                7
## 89        11   Male  29               Doctor            6.1                6
## 90        10   Male  29               Doctor            7.8                7
## 91         9   Male  29               Doctor            7.8                7
## 92         8   Male  29               Doctor            7.8                7
## 93         7   Male  29              Teacher            6.3                6
## 94         6   Male  28    Software Engineer            5.9                4
## 95         5   Male  28 Sales Representative            5.9                4
## 96         4   Male  28 Sales Representative            5.9                4
## 97         3   Male  28               Doctor            6.2                6
## 98         2   Male  28               Doctor            6.2                6
## 99         1   Male  27    Software Engineer            6.1                6
##    Physical.Activity.Level Stress.Level  BMI.Category Blood.Pressure Heart.Rate
## 1                       60            4        Normal         115/75         68
## 2                       60            4        Normal         115/75         68
## 3                       60            4        Normal         115/75         68
## 4                       60            4        Normal         115/75         68
## 5                       60            4        Normal         115/75         68
## 6                       60            5         Obese         135/88         84
## 7                       60            5 Normal Weight         120/80         70
## 8                       60            4        Normal         125/80         65
## 9                       60            4        Normal         125/80         65
## 10                      60            4        Normal         125/80         65
## 11                      60            4        Normal         125/80         65
## 12                      60            4        Normal         125/80         65
## 13                      60            4        Normal         125/80         65
## 14                      60            4        Normal         115/75         68
## 15                      60            5 Normal Weight         120/80         70
## 16                      40            5    Overweight         128/84         70
## 17                      40            5    Overweight         128/84         70
## 18                      32            8    Overweight         131/86         81
## 19                      32            8    Overweight         131/86         81
## 20                      30            8        Normal         125/80         72
## 21                      30            8        Normal         125/80         72
## 22                      30            8        Normal         125/80         72
## 23                      30            8        Normal         125/80         72
## 24                      30            8        Normal         125/80         72
## 25                      30            8        Normal         125/80         72
## 26                      30            8        Normal         125/80         72
## 27                      30            8        Normal         125/80         72
## 28                      30            8        Normal         125/80         72
## 29                      30            8        Normal         125/80         72
## 30                      50            6    Overweight         128/85         76
## 31                      50            6    Overweight         128/85         76
## 32                      30            8        Normal         125/80         72
## 33                      50            6 Normal Weight         118/76         68
## 34                      30            8        Normal         125/80         72
## 35                      30            8        Normal         125/80         72
## 36                      30            8        Normal         125/80         72
## 37                      30            8        Normal         125/80         72
## 38                      30            8        Normal         125/80         72
## 39                      30            8        Normal         125/80         72
## 40                      75            6        Normal         120/80         70
## 41                      30            8        Normal         125/80         72
## 42                      30            8        Normal         125/80         72
## 43                      75            6        Normal         120/80         70
## 44                      30            8        Normal         125/80         72
## 45                      30            8        Normal         125/80         72
## 46                      75            6        Normal         120/80         70
## 47                      30            8        Normal         125/80         72
## 48                      45            3        Normal         120/80         70
## 49                      45            3        Normal         120/80         70
## 50                      75            6        Normal         120/80         70
## 51                      75            6        Normal         120/80         70
## 52                      75            6        Normal         120/80         70
## 53                      75            6        Normal         120/80         70
## 54                      75            6        Normal         120/80         70
## 55                      75            6        Normal         120/80         70
## 56                      75            6        Normal         120/80         70
## 57                      75            6        Normal         120/80         70
## 58                      75            6        Normal         120/80         70
## 59                      75            6        Normal         120/80         70
## 60                      75            6        Normal         120/80         70
## 61                      75            6        Normal         120/80         70
## 62                      75            6        Normal         120/80         70
## 63                      30            8        Normal         125/80         72
## 64                      30            8        Normal         125/80         72
## 65                      75            6        Normal         120/80         70
## 66                      30            8        Normal         125/80         72
## 67                      75            4 Normal Weight         117/76         69
## 68                      35            7 Normal Weight         130/86         78
## 69                      35            7 Normal Weight         130/86         78
## 70                      75            6        Normal         120/80         70
## 71                      75            6        Normal         120/80         70
## 72                      75            6        Normal         120/80         70
## 73                      75            6        Normal         120/80         70
## 74                      75            6        Normal         120/80         70
## 75                      75            6        Normal         120/80         70
## 76                      75            6        Normal         120/80         70
## 77                      75            6        Normal         120/80         70
## 78                      75            6        Normal         120/80         70
## 79                      75            6        Normal         120/80         70
## 80                      75            6        Normal         120/80         70
## 81                      40            7 Normal Weight         132/87         80
## 82                      30            8        Normal         120/80         70
## 83                      40            7 Normal Weight         132/87         80
## 84                      30            8        Normal         120/80         70
## 85                      30            8        Normal         120/80         70
## 86                      30            8        Normal         120/80         70
## 87                      30            8        Normal         120/80         70
## 88                      75            6        Normal         120/80         70
## 89                      30            8        Normal         120/80         70
## 90                      75            6        Normal         120/80         70
## 91                      75            6        Normal         120/80         70
## 92                      75            6        Normal         120/80         70
## 93                      40            7         Obese         140/90         82
## 94                      30            8         Obese         140/90         85
## 95                      30            8         Obese         140/90         85
## 96                      30            8         Obese         140/90         85
## 97                      60            8        Normal         125/80         75
## 98                      60            8        Normal         125/80         75
## 99                      42            6    Overweight         126/83         77
##    Daily.Steps Sleep.Disorder
## 1         7000           None
## 2         7000           None
## 3         7000           None
## 4         7000           None
## 5         7000       Insomnia
## 6         3300    Sleep Apnea
## 7         8000           None
## 8         5000           None
## 9         5000           None
## 10        5000           None
## 11        5000           None
## 12        5000           None
## 13        5000           None
## 14        7000           None
## 15        8000           None
## 16        5600           None
## 17        5600           None
## 18        5200    Sleep Apnea
## 19        5200    Sleep Apnea
## 20        5000           None
## 21        5000           None
## 22        5000           None
## 23        5000           None
## 24        5000           None
## 25        5000           None
## 26        5000           None
## 27        5000           None
## 28        5000           None
## 29        5000           None
## 30        5500           None
## 31        5500           None
## 32        5000       Insomnia
## 33        7000           None
## 34        5000           None
## 35        5000           None
## 36        5000           None
## 37        5000           None
## 38        5000           None
## 39        5000           None
## 40        8000           None
## 41        5000           None
## 42        5000           None
## 43        8000           None
## 44        5000           None
## 45        5000           None
## 46        8000           None
## 47        5000           None
## 48        8000           None
## 49        8000           None
## 50        8000    Sleep Apnea
## 51        8000           None
## 52        8000           None
## 53        8000           None
## 54        8000           None
## 55        8000           None
## 56        8000           None
## 57        8000           None
## 58        8000           None
## 59        8000           None
## 60        8000           None
## 61        8000           None
## 62        8000           None
## 63        5000           None
## 64        5000           None
## 65        8000           None
## 66        5000           None
## 67        6800           None
## 68        4100       Insomnia
## 69        4100    Sleep Apnea
## 70        8000           None
## 71        8000           None
## 72        8000           None
## 73        8000           None
## 74        8000           None
## 75        8000           None
## 76        8000           None
## 77        8000           None
## 78        8000           None
## 79        8000           None
## 80        8000           None
## 81        4000       Insomnia
## 82        8000    Sleep Apnea
## 83        4000    Sleep Apnea
## 84        8000           None
## 85        8000           None
## 86        8000           None
## 87        8000           None
## 88        8000           None
## 89        8000           None
## 90        8000           None
## 91        8000           None
## 92        8000           None
## 93        3500       Insomnia
## 94        3000       Insomnia
## 95        3000    Sleep Apnea
## 96        3000    Sleep Apnea
## 97       10000           None
## 98       10000           None
## 99        4200           None

Rename some of the column names in your dataset.

names(Sleep)[names(Sleep) == "Person.ID"] = "Patient.ID"
names(Sleep)[names(Sleep) == "Stress.Level"] = "Stress"
head(Sleep,10) #view changed column name
##    Patient.ID Gender Age           Occupation Sleep.Duration Quality.of.Sleep
## 1           1   Male  27    Software Engineer            6.1                6
## 2           2   Male  28               Doctor            6.2                6
## 3           3   Male  28               Doctor            6.2                6
## 4           4   Male  28 Sales Representative            5.9                4
## 5           5   Male  28 Sales Representative            5.9                4
## 6           6   Male  28    Software Engineer            5.9                4
## 7           7   Male  29              Teacher            6.3                6
## 8           8   Male  29               Doctor            7.8                7
## 9           9   Male  29               Doctor            7.8                7
## 10         10   Male  29               Doctor            7.8                7
##    Physical.Activity.Level Stress BMI.Category Blood.Pressure Heart.Rate
## 1                       42      6   Overweight         126/83         77
## 2                       60      8       Normal         125/80         75
## 3                       60      8       Normal         125/80         75
## 4                       30      8        Obese         140/90         85
## 5                       30      8        Obese         140/90         85
## 6                       30      8        Obese         140/90         85
## 7                       40      7        Obese         140/90         82
## 8                       75      6       Normal         120/80         70
## 9                       75      6       Normal         120/80         70
## 10                      75      6       Normal         120/80         70
##    Daily.Steps Sleep.Disorder
## 1         4200           None
## 2        10000           None
## 3        10000           None
## 4         3000    Sleep Apnea
## 5         3000    Sleep Apnea
## 6         3000       Insomnia
## 7         3500       Insomnia
## 8         8000           None
## 9         8000           None
## 10        8000           None

Add new variables in your data frame by using a mathematical function.

Sleep$Stress2=Sleep$Stress * 2
head(Sleep,10) #view new column
##    Patient.ID Gender Age           Occupation Sleep.Duration Quality.of.Sleep
## 1           1   Male  27    Software Engineer            6.1                6
## 2           2   Male  28               Doctor            6.2                6
## 3           3   Male  28               Doctor            6.2                6
## 4           4   Male  28 Sales Representative            5.9                4
## 5           5   Male  28 Sales Representative            5.9                4
## 6           6   Male  28    Software Engineer            5.9                4
## 7           7   Male  29              Teacher            6.3                6
## 8           8   Male  29               Doctor            7.8                7
## 9           9   Male  29               Doctor            7.8                7
## 10         10   Male  29               Doctor            7.8                7
##    Physical.Activity.Level Stress BMI.Category Blood.Pressure Heart.Rate
## 1                       42      6   Overweight         126/83         77
## 2                       60      8       Normal         125/80         75
## 3                       60      8       Normal         125/80         75
## 4                       30      8        Obese         140/90         85
## 5                       30      8        Obese         140/90         85
## 6                       30      8        Obese         140/90         85
## 7                       40      7        Obese         140/90         82
## 8                       75      6       Normal         120/80         70
## 9                       75      6       Normal         120/80         70
## 10                      75      6       Normal         120/80         70
##    Daily.Steps Sleep.Disorder Stress2
## 1         4200           None      12
## 2        10000           None      16
## 3        10000           None      16
## 4         3000    Sleep Apnea      16
## 5         3000    Sleep Apnea      16
## 6         3000       Insomnia      16
## 7         3500       Insomnia      14
## 8         8000           None      12
## 9         8000           None      12
## 10        8000           None      12

Create a training set using a random number generator engine.

set.seed(1234)
Training.Set=Sleep %>% sample_n(5, replace = FALSE)
Training.Set
##   Patient.ID Gender Age           Occupation Sleep.Duration Quality.of.Sleep
## 1         28   Male  30               Doctor            7.9                7
## 2         80   Male  33               Doctor            6.0                6
## 3         22   Male  30               Doctor            7.7                7
## 4          9   Male  29               Doctor            7.8                7
## 5          5   Male  28 Sales Representative            5.9                4
##   Physical.Activity.Level Stress BMI.Category Blood.Pressure Heart.Rate
## 1                      75      6       Normal         120/80         70
## 2                      30      8       Normal         125/80         72
## 3                      75      6       Normal         120/80         70
## 4                      75      6       Normal         120/80         70
## 5                      30      8        Obese         140/90         85
##   Daily.Steps Sleep.Disorder Stress2
## 1        8000           None      12
## 2        5000           None      16
## 3        8000           None      12
## 4        8000           None      12
## 5        3000    Sleep Apnea      16

Print the summary statistics of your dataset.

Sleep %>% group_by(Gender) %>% summarise(mean(Quality.of.Sleep))
## # A tibble: 2 × 2
##   Gender `mean(Quality.of.Sleep)`
##   <chr>                     <dbl>
## 1 Female                     6.4 
## 2 Male                       6.61

Use any of the numerical variables from the dataset and perform the following statistical functions.

mean(Sleep$Sleep.Duration)
## [1] 6.868687
median(Sleep$Quality.of.Sleep)
## [1] 7
mode(Sleep$Physical.Activity.Level)
## [1] "numeric"
range(Sleep$Stress)
## [1] 3 8

Plot a scatter plot for any 2 variables in your dataset.

ggplot(Sleep, aes(x = Stress, y = Sleep.Duration)) +
  geom_point(color = "steelblue") +
  labs(title = "Sleep Duration vs. Stress Level",
       x = "Stress Level",
       y = "Sleep Duration (hours)")

Plot a bar plot for any 2 variables in your dataset.

ggplot(Sleep,aes(y = Sleep.Duration, fill=Blood.Pressure))+geom_bar()

Find the correlation between any 2 variables by applying least square linear regression model.

Y = Sleep$Stress    
X = Sleep$Sleep.Duration
cor(Y,X, method="pearson") 
## [1] -0.7279217