Öncelikle ilgili paketleri kütüphaneden çağırıyoruz.
library(dplyr)
## 
## Attaching package: 'dplyr'
## The following objects are masked from 'package:stats':
## 
##     filter, lag
## The following objects are masked from 'package:base':
## 
##     intersect, setdiff, setequal, union
library(tidyverse)
## ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ──
## ✔ forcats   1.0.0     ✔ readr     2.1.5
## ✔ ggplot2   4.0.0     ✔ stringr   1.5.2
## ✔ lubridate 1.9.4     ✔ tibble    3.3.0
## ✔ purrr     1.1.0     ✔ tidyr     1.3.1
## ── 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
library(openintro)
## Loading required package: airports
## Loading required package: cherryblossom
## Loading required package: usdata
library(ggplot2)
Veriyi çalışmaya uygun hale getiriyoruz. Değişken adlarını Türkçe yapıyoruz.
penguins
##       species    island bill_len bill_dep flipper_len body_mass    sex year
## 1      Adelie Torgersen     39.1     18.7         181      3750   male 2007
## 2      Adelie Torgersen     39.5     17.4         186      3800 female 2007
## 3      Adelie Torgersen     40.3     18.0         195      3250 female 2007
## 4      Adelie Torgersen       NA       NA          NA        NA   <NA> 2007
## 5      Adelie Torgersen     36.7     19.3         193      3450 female 2007
## 6      Adelie Torgersen     39.3     20.6         190      3650   male 2007
## 7      Adelie Torgersen     38.9     17.8         181      3625 female 2007
## 8      Adelie Torgersen     39.2     19.6         195      4675   male 2007
## 9      Adelie Torgersen     34.1     18.1         193      3475   <NA> 2007
## 10     Adelie Torgersen     42.0     20.2         190      4250   <NA> 2007
## 11     Adelie Torgersen     37.8     17.1         186      3300   <NA> 2007
## 12     Adelie Torgersen     37.8     17.3         180      3700   <NA> 2007
## 13     Adelie Torgersen     41.1     17.6         182      3200 female 2007
## 14     Adelie Torgersen     38.6     21.2         191      3800   male 2007
## 15     Adelie Torgersen     34.6     21.1         198      4400   male 2007
## 16     Adelie Torgersen     36.6     17.8         185      3700 female 2007
## 17     Adelie Torgersen     38.7     19.0         195      3450 female 2007
## 18     Adelie Torgersen     42.5     20.7         197      4500   male 2007
## 19     Adelie Torgersen     34.4     18.4         184      3325 female 2007
## 20     Adelie Torgersen     46.0     21.5         194      4200   male 2007
## 21     Adelie    Biscoe     37.8     18.3         174      3400 female 2007
## 22     Adelie    Biscoe     37.7     18.7         180      3600   male 2007
## 23     Adelie    Biscoe     35.9     19.2         189      3800 female 2007
## 24     Adelie    Biscoe     38.2     18.1         185      3950   male 2007
## 25     Adelie    Biscoe     38.8     17.2         180      3800   male 2007
## 26     Adelie    Biscoe     35.3     18.9         187      3800 female 2007
## 27     Adelie    Biscoe     40.6     18.6         183      3550   male 2007
## 28     Adelie    Biscoe     40.5     17.9         187      3200 female 2007
## 29     Adelie    Biscoe     37.9     18.6         172      3150 female 2007
## 30     Adelie    Biscoe     40.5     18.9         180      3950   male 2007
## 31     Adelie     Dream     39.5     16.7         178      3250 female 2007
## 32     Adelie     Dream     37.2     18.1         178      3900   male 2007
## 33     Adelie     Dream     39.5     17.8         188      3300 female 2007
## 34     Adelie     Dream     40.9     18.9         184      3900   male 2007
## 35     Adelie     Dream     36.4     17.0         195      3325 female 2007
## 36     Adelie     Dream     39.2     21.1         196      4150   male 2007
## 37     Adelie     Dream     38.8     20.0         190      3950   male 2007
## 38     Adelie     Dream     42.2     18.5         180      3550 female 2007
## 39     Adelie     Dream     37.6     19.3         181      3300 female 2007
## 40     Adelie     Dream     39.8     19.1         184      4650   male 2007
## 41     Adelie     Dream     36.5     18.0         182      3150 female 2007
## 42     Adelie     Dream     40.8     18.4         195      3900   male 2007
## 43     Adelie     Dream     36.0     18.5         186      3100 female 2007
## 44     Adelie     Dream     44.1     19.7         196      4400   male 2007
## 45     Adelie     Dream     37.0     16.9         185      3000 female 2007
## 46     Adelie     Dream     39.6     18.8         190      4600   male 2007
## 47     Adelie     Dream     41.1     19.0         182      3425   male 2007
## 48     Adelie     Dream     37.5     18.9         179      2975   <NA> 2007
## 49     Adelie     Dream     36.0     17.9         190      3450 female 2007
## 50     Adelie     Dream     42.3     21.2         191      4150   male 2007
## 51     Adelie    Biscoe     39.6     17.7         186      3500 female 2008
## 52     Adelie    Biscoe     40.1     18.9         188      4300   male 2008
## 53     Adelie    Biscoe     35.0     17.9         190      3450 female 2008
## 54     Adelie    Biscoe     42.0     19.5         200      4050   male 2008
## 55     Adelie    Biscoe     34.5     18.1         187      2900 female 2008
## 56     Adelie    Biscoe     41.4     18.6         191      3700   male 2008
## 57     Adelie    Biscoe     39.0     17.5         186      3550 female 2008
## 58     Adelie    Biscoe     40.6     18.8         193      3800   male 2008
## 59     Adelie    Biscoe     36.5     16.6         181      2850 female 2008
## 60     Adelie    Biscoe     37.6     19.1         194      3750   male 2008
## 61     Adelie    Biscoe     35.7     16.9         185      3150 female 2008
## 62     Adelie    Biscoe     41.3     21.1         195      4400   male 2008
## 63     Adelie    Biscoe     37.6     17.0         185      3600 female 2008
## 64     Adelie    Biscoe     41.1     18.2         192      4050   male 2008
## 65     Adelie    Biscoe     36.4     17.1         184      2850 female 2008
## 66     Adelie    Biscoe     41.6     18.0         192      3950   male 2008
## 67     Adelie    Biscoe     35.5     16.2         195      3350 female 2008
## 68     Adelie    Biscoe     41.1     19.1         188      4100   male 2008
## 69     Adelie Torgersen     35.9     16.6         190      3050 female 2008
## 70     Adelie Torgersen     41.8     19.4         198      4450   male 2008
## 71     Adelie Torgersen     33.5     19.0         190      3600 female 2008
## 72     Adelie Torgersen     39.7     18.4         190      3900   male 2008
## 73     Adelie Torgersen     39.6     17.2         196      3550 female 2008
## 74     Adelie Torgersen     45.8     18.9         197      4150   male 2008
## 75     Adelie Torgersen     35.5     17.5         190      3700 female 2008
## 76     Adelie Torgersen     42.8     18.5         195      4250   male 2008
## 77     Adelie Torgersen     40.9     16.8         191      3700 female 2008
## 78     Adelie Torgersen     37.2     19.4         184      3900   male 2008
## 79     Adelie Torgersen     36.2     16.1         187      3550 female 2008
## 80     Adelie Torgersen     42.1     19.1         195      4000   male 2008
## 81     Adelie Torgersen     34.6     17.2         189      3200 female 2008
## 82     Adelie Torgersen     42.9     17.6         196      4700   male 2008
## 83     Adelie Torgersen     36.7     18.8         187      3800 female 2008
## 84     Adelie Torgersen     35.1     19.4         193      4200   male 2008
## 85     Adelie     Dream     37.3     17.8         191      3350 female 2008
## 86     Adelie     Dream     41.3     20.3         194      3550   male 2008
## 87     Adelie     Dream     36.3     19.5         190      3800   male 2008
## 88     Adelie     Dream     36.9     18.6         189      3500 female 2008
## 89     Adelie     Dream     38.3     19.2         189      3950   male 2008
## 90     Adelie     Dream     38.9     18.8         190      3600 female 2008
## 91     Adelie     Dream     35.7     18.0         202      3550 female 2008
## 92     Adelie     Dream     41.1     18.1         205      4300   male 2008
## 93     Adelie     Dream     34.0     17.1         185      3400 female 2008
## 94     Adelie     Dream     39.6     18.1         186      4450   male 2008
## 95     Adelie     Dream     36.2     17.3         187      3300 female 2008
## 96     Adelie     Dream     40.8     18.9         208      4300   male 2008
## 97     Adelie     Dream     38.1     18.6         190      3700 female 2008
## 98     Adelie     Dream     40.3     18.5         196      4350   male 2008
## 99     Adelie     Dream     33.1     16.1         178      2900 female 2008
## 100    Adelie     Dream     43.2     18.5         192      4100   male 2008
## 101    Adelie    Biscoe     35.0     17.9         192      3725 female 2009
## 102    Adelie    Biscoe     41.0     20.0         203      4725   male 2009
## 103    Adelie    Biscoe     37.7     16.0         183      3075 female 2009
## 104    Adelie    Biscoe     37.8     20.0         190      4250   male 2009
## 105    Adelie    Biscoe     37.9     18.6         193      2925 female 2009
## 106    Adelie    Biscoe     39.7     18.9         184      3550   male 2009
## 107    Adelie    Biscoe     38.6     17.2         199      3750 female 2009
## 108    Adelie    Biscoe     38.2     20.0         190      3900   male 2009
## 109    Adelie    Biscoe     38.1     17.0         181      3175 female 2009
## 110    Adelie    Biscoe     43.2     19.0         197      4775   male 2009
## 111    Adelie    Biscoe     38.1     16.5         198      3825 female 2009
## 112    Adelie    Biscoe     45.6     20.3         191      4600   male 2009
## 113    Adelie    Biscoe     39.7     17.7         193      3200 female 2009
## 114    Adelie    Biscoe     42.2     19.5         197      4275   male 2009
## 115    Adelie    Biscoe     39.6     20.7         191      3900 female 2009
## 116    Adelie    Biscoe     42.7     18.3         196      4075   male 2009
## 117    Adelie Torgersen     38.6     17.0         188      2900 female 2009
## 118    Adelie Torgersen     37.3     20.5         199      3775   male 2009
## 119    Adelie Torgersen     35.7     17.0         189      3350 female 2009
## 120    Adelie Torgersen     41.1     18.6         189      3325   male 2009
## 121    Adelie Torgersen     36.2     17.2         187      3150 female 2009
## 122    Adelie Torgersen     37.7     19.8         198      3500   male 2009
## 123    Adelie Torgersen     40.2     17.0         176      3450 female 2009
## 124    Adelie Torgersen     41.4     18.5         202      3875   male 2009
## 125    Adelie Torgersen     35.2     15.9         186      3050 female 2009
## 126    Adelie Torgersen     40.6     19.0         199      4000   male 2009
## 127    Adelie Torgersen     38.8     17.6         191      3275 female 2009
## 128    Adelie Torgersen     41.5     18.3         195      4300   male 2009
## 129    Adelie Torgersen     39.0     17.1         191      3050 female 2009
## 130    Adelie Torgersen     44.1     18.0         210      4000   male 2009
## 131    Adelie Torgersen     38.5     17.9         190      3325 female 2009
## 132    Adelie Torgersen     43.1     19.2         197      3500   male 2009
## 133    Adelie     Dream     36.8     18.5         193      3500 female 2009
## 134    Adelie     Dream     37.5     18.5         199      4475   male 2009
## 135    Adelie     Dream     38.1     17.6         187      3425 female 2009
## 136    Adelie     Dream     41.1     17.5         190      3900   male 2009
## 137    Adelie     Dream     35.6     17.5         191      3175 female 2009
## 138    Adelie     Dream     40.2     20.1         200      3975   male 2009
## 139    Adelie     Dream     37.0     16.5         185      3400 female 2009
## 140    Adelie     Dream     39.7     17.9         193      4250   male 2009
## 141    Adelie     Dream     40.2     17.1         193      3400 female 2009
## 142    Adelie     Dream     40.6     17.2         187      3475   male 2009
## 143    Adelie     Dream     32.1     15.5         188      3050 female 2009
## 144    Adelie     Dream     40.7     17.0         190      3725   male 2009
## 145    Adelie     Dream     37.3     16.8         192      3000 female 2009
## 146    Adelie     Dream     39.0     18.7         185      3650   male 2009
## 147    Adelie     Dream     39.2     18.6         190      4250   male 2009
## 148    Adelie     Dream     36.6     18.4         184      3475 female 2009
## 149    Adelie     Dream     36.0     17.8         195      3450 female 2009
## 150    Adelie     Dream     37.8     18.1         193      3750   male 2009
## 151    Adelie     Dream     36.0     17.1         187      3700 female 2009
## 152    Adelie     Dream     41.5     18.5         201      4000   male 2009
## 153    Gentoo    Biscoe     46.1     13.2         211      4500 female 2007
## 154    Gentoo    Biscoe     50.0     16.3         230      5700   male 2007
## 155    Gentoo    Biscoe     48.7     14.1         210      4450 female 2007
## 156    Gentoo    Biscoe     50.0     15.2         218      5700   male 2007
## 157    Gentoo    Biscoe     47.6     14.5         215      5400   male 2007
## 158    Gentoo    Biscoe     46.5     13.5         210      4550 female 2007
## 159    Gentoo    Biscoe     45.4     14.6         211      4800 female 2007
## 160    Gentoo    Biscoe     46.7     15.3         219      5200   male 2007
## 161    Gentoo    Biscoe     43.3     13.4         209      4400 female 2007
## 162    Gentoo    Biscoe     46.8     15.4         215      5150   male 2007
## 163    Gentoo    Biscoe     40.9     13.7         214      4650 female 2007
## 164    Gentoo    Biscoe     49.0     16.1         216      5550   male 2007
## 165    Gentoo    Biscoe     45.5     13.7         214      4650 female 2007
## 166    Gentoo    Biscoe     48.4     14.6         213      5850   male 2007
## 167    Gentoo    Biscoe     45.8     14.6         210      4200 female 2007
## 168    Gentoo    Biscoe     49.3     15.7         217      5850   male 2007
## 169    Gentoo    Biscoe     42.0     13.5         210      4150 female 2007
## 170    Gentoo    Biscoe     49.2     15.2         221      6300   male 2007
## 171    Gentoo    Biscoe     46.2     14.5         209      4800 female 2007
## 172    Gentoo    Biscoe     48.7     15.1         222      5350   male 2007
## 173    Gentoo    Biscoe     50.2     14.3         218      5700   male 2007
## 174    Gentoo    Biscoe     45.1     14.5         215      5000 female 2007
## 175    Gentoo    Biscoe     46.5     14.5         213      4400 female 2007
## 176    Gentoo    Biscoe     46.3     15.8         215      5050   male 2007
## 177    Gentoo    Biscoe     42.9     13.1         215      5000 female 2007
## 178    Gentoo    Biscoe     46.1     15.1         215      5100   male 2007
## 179    Gentoo    Biscoe     44.5     14.3         216      4100   <NA> 2007
## 180    Gentoo    Biscoe     47.8     15.0         215      5650   male 2007
## 181    Gentoo    Biscoe     48.2     14.3         210      4600 female 2007
## 182    Gentoo    Biscoe     50.0     15.3         220      5550   male 2007
## 183    Gentoo    Biscoe     47.3     15.3         222      5250   male 2007
## 184    Gentoo    Biscoe     42.8     14.2         209      4700 female 2007
## 185    Gentoo    Biscoe     45.1     14.5         207      5050 female 2007
## 186    Gentoo    Biscoe     59.6     17.0         230      6050   male 2007
## 187    Gentoo    Biscoe     49.1     14.8         220      5150 female 2008
## 188    Gentoo    Biscoe     48.4     16.3         220      5400   male 2008
## 189    Gentoo    Biscoe     42.6     13.7         213      4950 female 2008
## 190    Gentoo    Biscoe     44.4     17.3         219      5250   male 2008
## 191    Gentoo    Biscoe     44.0     13.6         208      4350 female 2008
## 192    Gentoo    Biscoe     48.7     15.7         208      5350   male 2008
## 193    Gentoo    Biscoe     42.7     13.7         208      3950 female 2008
## 194    Gentoo    Biscoe     49.6     16.0         225      5700   male 2008
## 195    Gentoo    Biscoe     45.3     13.7         210      4300 female 2008
## 196    Gentoo    Biscoe     49.6     15.0         216      4750   male 2008
## 197    Gentoo    Biscoe     50.5     15.9         222      5550   male 2008
## 198    Gentoo    Biscoe     43.6     13.9         217      4900 female 2008
## 199    Gentoo    Biscoe     45.5     13.9         210      4200 female 2008
## 200    Gentoo    Biscoe     50.5     15.9         225      5400   male 2008
## 201    Gentoo    Biscoe     44.9     13.3         213      5100 female 2008
## 202    Gentoo    Biscoe     45.2     15.8         215      5300   male 2008
## 203    Gentoo    Biscoe     46.6     14.2         210      4850 female 2008
## 204    Gentoo    Biscoe     48.5     14.1         220      5300   male 2008
## 205    Gentoo    Biscoe     45.1     14.4         210      4400 female 2008
## 206    Gentoo    Biscoe     50.1     15.0         225      5000   male 2008
## 207    Gentoo    Biscoe     46.5     14.4         217      4900 female 2008
## 208    Gentoo    Biscoe     45.0     15.4         220      5050   male 2008
## 209    Gentoo    Biscoe     43.8     13.9         208      4300 female 2008
## 210    Gentoo    Biscoe     45.5     15.0         220      5000   male 2008
## 211    Gentoo    Biscoe     43.2     14.5         208      4450 female 2008
## 212    Gentoo    Biscoe     50.4     15.3         224      5550   male 2008
## 213    Gentoo    Biscoe     45.3     13.8         208      4200 female 2008
## 214    Gentoo    Biscoe     46.2     14.9         221      5300   male 2008
## 215    Gentoo    Biscoe     45.7     13.9         214      4400 female 2008
## 216    Gentoo    Biscoe     54.3     15.7         231      5650   male 2008
## 217    Gentoo    Biscoe     45.8     14.2         219      4700 female 2008
## 218    Gentoo    Biscoe     49.8     16.8         230      5700   male 2008
## 219    Gentoo    Biscoe     46.2     14.4         214      4650   <NA> 2008
## 220    Gentoo    Biscoe     49.5     16.2         229      5800   male 2008
## 221    Gentoo    Biscoe     43.5     14.2         220      4700 female 2008
## 222    Gentoo    Biscoe     50.7     15.0         223      5550   male 2008
## 223    Gentoo    Biscoe     47.7     15.0         216      4750 female 2008
## 224    Gentoo    Biscoe     46.4     15.6         221      5000   male 2008
## 225    Gentoo    Biscoe     48.2     15.6         221      5100   male 2008
## 226    Gentoo    Biscoe     46.5     14.8         217      5200 female 2008
## 227    Gentoo    Biscoe     46.4     15.0         216      4700 female 2008
## 228    Gentoo    Biscoe     48.6     16.0         230      5800   male 2008
## 229    Gentoo    Biscoe     47.5     14.2         209      4600 female 2008
## 230    Gentoo    Biscoe     51.1     16.3         220      6000   male 2008
## 231    Gentoo    Biscoe     45.2     13.8         215      4750 female 2008
## 232    Gentoo    Biscoe     45.2     16.4         223      5950   male 2008
## 233    Gentoo    Biscoe     49.1     14.5         212      4625 female 2009
## 234    Gentoo    Biscoe     52.5     15.6         221      5450   male 2009
## 235    Gentoo    Biscoe     47.4     14.6         212      4725 female 2009
## 236    Gentoo    Biscoe     50.0     15.9         224      5350   male 2009
## 237    Gentoo    Biscoe     44.9     13.8         212      4750 female 2009
## 238    Gentoo    Biscoe     50.8     17.3         228      5600   male 2009
## 239    Gentoo    Biscoe     43.4     14.4         218      4600 female 2009
## 240    Gentoo    Biscoe     51.3     14.2         218      5300   male 2009
## 241    Gentoo    Biscoe     47.5     14.0         212      4875 female 2009
## 242    Gentoo    Biscoe     52.1     17.0         230      5550   male 2009
## 243    Gentoo    Biscoe     47.5     15.0         218      4950 female 2009
## 244    Gentoo    Biscoe     52.2     17.1         228      5400   male 2009
## 245    Gentoo    Biscoe     45.5     14.5         212      4750 female 2009
## 246    Gentoo    Biscoe     49.5     16.1         224      5650   male 2009
## 247    Gentoo    Biscoe     44.5     14.7         214      4850 female 2009
## 248    Gentoo    Biscoe     50.8     15.7         226      5200   male 2009
## 249    Gentoo    Biscoe     49.4     15.8         216      4925   male 2009
## 250    Gentoo    Biscoe     46.9     14.6         222      4875 female 2009
## 251    Gentoo    Biscoe     48.4     14.4         203      4625 female 2009
## 252    Gentoo    Biscoe     51.1     16.5         225      5250   male 2009
## 253    Gentoo    Biscoe     48.5     15.0         219      4850 female 2009
## 254    Gentoo    Biscoe     55.9     17.0         228      5600   male 2009
## 255    Gentoo    Biscoe     47.2     15.5         215      4975 female 2009
## 256    Gentoo    Biscoe     49.1     15.0         228      5500   male 2009
## 257    Gentoo    Biscoe     47.3     13.8         216      4725   <NA> 2009
## 258    Gentoo    Biscoe     46.8     16.1         215      5500   male 2009
## 259    Gentoo    Biscoe     41.7     14.7         210      4700 female 2009
## 260    Gentoo    Biscoe     53.4     15.8         219      5500   male 2009
## 261    Gentoo    Biscoe     43.3     14.0         208      4575 female 2009
## 262    Gentoo    Biscoe     48.1     15.1         209      5500   male 2009
## 263    Gentoo    Biscoe     50.5     15.2         216      5000 female 2009
## 264    Gentoo    Biscoe     49.8     15.9         229      5950   male 2009
## 265    Gentoo    Biscoe     43.5     15.2         213      4650 female 2009
## 266    Gentoo    Biscoe     51.5     16.3         230      5500   male 2009
## 267    Gentoo    Biscoe     46.2     14.1         217      4375 female 2009
## 268    Gentoo    Biscoe     55.1     16.0         230      5850   male 2009
## 269    Gentoo    Biscoe     44.5     15.7         217      4875   <NA> 2009
## 270    Gentoo    Biscoe     48.8     16.2         222      6000   male 2009
## 271    Gentoo    Biscoe     47.2     13.7         214      4925 female 2009
## 272    Gentoo    Biscoe       NA       NA          NA        NA   <NA> 2009
## 273    Gentoo    Biscoe     46.8     14.3         215      4850 female 2009
## 274    Gentoo    Biscoe     50.4     15.7         222      5750   male 2009
## 275    Gentoo    Biscoe     45.2     14.8         212      5200 female 2009
## 276    Gentoo    Biscoe     49.9     16.1         213      5400   male 2009
## 277 Chinstrap     Dream     46.5     17.9         192      3500 female 2007
## 278 Chinstrap     Dream     50.0     19.5         196      3900   male 2007
## 279 Chinstrap     Dream     51.3     19.2         193      3650   male 2007
## 280 Chinstrap     Dream     45.4     18.7         188      3525 female 2007
## 281 Chinstrap     Dream     52.7     19.8         197      3725   male 2007
## 282 Chinstrap     Dream     45.2     17.8         198      3950 female 2007
## 283 Chinstrap     Dream     46.1     18.2         178      3250 female 2007
## 284 Chinstrap     Dream     51.3     18.2         197      3750   male 2007
## 285 Chinstrap     Dream     46.0     18.9         195      4150 female 2007
## 286 Chinstrap     Dream     51.3     19.9         198      3700   male 2007
## 287 Chinstrap     Dream     46.6     17.8         193      3800 female 2007
## 288 Chinstrap     Dream     51.7     20.3         194      3775   male 2007
## 289 Chinstrap     Dream     47.0     17.3         185      3700 female 2007
## 290 Chinstrap     Dream     52.0     18.1         201      4050   male 2007
## 291 Chinstrap     Dream     45.9     17.1         190      3575 female 2007
## 292 Chinstrap     Dream     50.5     19.6         201      4050   male 2007
## 293 Chinstrap     Dream     50.3     20.0         197      3300   male 2007
## 294 Chinstrap     Dream     58.0     17.8         181      3700 female 2007
## 295 Chinstrap     Dream     46.4     18.6         190      3450 female 2007
## 296 Chinstrap     Dream     49.2     18.2         195      4400   male 2007
## 297 Chinstrap     Dream     42.4     17.3         181      3600 female 2007
## 298 Chinstrap     Dream     48.5     17.5         191      3400   male 2007
## 299 Chinstrap     Dream     43.2     16.6         187      2900 female 2007
## 300 Chinstrap     Dream     50.6     19.4         193      3800   male 2007
## 301 Chinstrap     Dream     46.7     17.9         195      3300 female 2007
## 302 Chinstrap     Dream     52.0     19.0         197      4150   male 2007
## 303 Chinstrap     Dream     50.5     18.4         200      3400 female 2008
## 304 Chinstrap     Dream     49.5     19.0         200      3800   male 2008
## 305 Chinstrap     Dream     46.4     17.8         191      3700 female 2008
## 306 Chinstrap     Dream     52.8     20.0         205      4550   male 2008
## 307 Chinstrap     Dream     40.9     16.6         187      3200 female 2008
## 308 Chinstrap     Dream     54.2     20.8         201      4300   male 2008
## 309 Chinstrap     Dream     42.5     16.7         187      3350 female 2008
## 310 Chinstrap     Dream     51.0     18.8         203      4100   male 2008
## 311 Chinstrap     Dream     49.7     18.6         195      3600   male 2008
## 312 Chinstrap     Dream     47.5     16.8         199      3900 female 2008
## 313 Chinstrap     Dream     47.6     18.3         195      3850 female 2008
## 314 Chinstrap     Dream     52.0     20.7         210      4800   male 2008
## 315 Chinstrap     Dream     46.9     16.6         192      2700 female 2008
## 316 Chinstrap     Dream     53.5     19.9         205      4500   male 2008
## 317 Chinstrap     Dream     49.0     19.5         210      3950   male 2008
## 318 Chinstrap     Dream     46.2     17.5         187      3650 female 2008
## 319 Chinstrap     Dream     50.9     19.1         196      3550   male 2008
## 320 Chinstrap     Dream     45.5     17.0         196      3500 female 2008
## 321 Chinstrap     Dream     50.9     17.9         196      3675 female 2009
## 322 Chinstrap     Dream     50.8     18.5         201      4450   male 2009
## 323 Chinstrap     Dream     50.1     17.9         190      3400 female 2009
## 324 Chinstrap     Dream     49.0     19.6         212      4300   male 2009
## 325 Chinstrap     Dream     51.5     18.7         187      3250   male 2009
## 326 Chinstrap     Dream     49.8     17.3         198      3675 female 2009
## 327 Chinstrap     Dream     48.1     16.4         199      3325 female 2009
## 328 Chinstrap     Dream     51.4     19.0         201      3950   male 2009
## 329 Chinstrap     Dream     45.7     17.3         193      3600 female 2009
## 330 Chinstrap     Dream     50.7     19.7         203      4050   male 2009
## 331 Chinstrap     Dream     42.5     17.3         187      3350 female 2009
## 332 Chinstrap     Dream     52.2     18.8         197      3450   male 2009
## 333 Chinstrap     Dream     45.2     16.6         191      3250 female 2009
## 334 Chinstrap     Dream     49.3     19.9         203      4050   male 2009
## 335 Chinstrap     Dream     50.2     18.8         202      3800   male 2009
## 336 Chinstrap     Dream     45.6     19.4         194      3525 female 2009
## 337 Chinstrap     Dream     51.9     19.5         206      3950   male 2009
## 338 Chinstrap     Dream     46.8     16.5         189      3650 female 2009
## 339 Chinstrap     Dream     45.7     17.0         195      3650 female 2009
## 340 Chinstrap     Dream     55.8     19.8         207      4000   male 2009
## 341 Chinstrap     Dream     43.5     18.1         202      3400 female 2009
## 342 Chinstrap     Dream     49.6     18.2         193      3775   male 2009
## 343 Chinstrap     Dream     50.8     19.0         210      4100   male 2009
## 344 Chinstrap     Dream     50.2     18.7         198      3775 female 2009
names(penguins)
## [1] "species"     "island"      "bill_len"    "bill_dep"    "flipper_len"
## [6] "body_mass"   "sex"         "year"
penguins1 <- penguins %>%
  select(species, bill_len, bill_dep,
         flipper_len, body_mass, sex)
names(penguins1) <- c("tur","gagauzunlugu","gagaderinligi","yuzgecuzunlugu",
                      "vucutkutlesi","cinsiyet")
Veri seti boyutlarını incelemek için dim() fonksiyonunu
kullanıyoruz.
dim(penguins1)
## [1] 344   6
Eksik verileri tespit ediyoruz.
colSums(is.na(penguins1))
##            tur   gagauzunlugu  gagaderinligi yuzgecuzunlugu   vucutkutlesi 
##              0              2              2              2              2 
##       cinsiyet 
##             11
Eksik verileri çıkartıyoruz.
penguins2 <- na.omit(penguins1)
“bmi” değişkenini ekliyoruz.
penguins3 <- penguins2 %>%
        mutate(bmi=vucutkutlesi/yuzgecuzunlugu)
penguins3
##           tur gagauzunlugu gagaderinligi yuzgecuzunlugu vucutkutlesi cinsiyet
## 1      Adelie         39.1          18.7            181         3750     male
## 2      Adelie         39.5          17.4            186         3800   female
## 3      Adelie         40.3          18.0            195         3250   female
## 5      Adelie         36.7          19.3            193         3450   female
## 6      Adelie         39.3          20.6            190         3650     male
## 7      Adelie         38.9          17.8            181         3625   female
## 8      Adelie         39.2          19.6            195         4675     male
## 13     Adelie         41.1          17.6            182         3200   female
## 14     Adelie         38.6          21.2            191         3800     male
## 15     Adelie         34.6          21.1            198         4400     male
## 16     Adelie         36.6          17.8            185         3700   female
## 17     Adelie         38.7          19.0            195         3450   female
## 18     Adelie         42.5          20.7            197         4500     male
## 19     Adelie         34.4          18.4            184         3325   female
## 20     Adelie         46.0          21.5            194         4200     male
## 21     Adelie         37.8          18.3            174         3400   female
## 22     Adelie         37.7          18.7            180         3600     male
## 23     Adelie         35.9          19.2            189         3800   female
## 24     Adelie         38.2          18.1            185         3950     male
## 25     Adelie         38.8          17.2            180         3800     male
## 26     Adelie         35.3          18.9            187         3800   female
## 27     Adelie         40.6          18.6            183         3550     male
## 28     Adelie         40.5          17.9            187         3200   female
## 29     Adelie         37.9          18.6            172         3150   female
## 30     Adelie         40.5          18.9            180         3950     male
## 31     Adelie         39.5          16.7            178         3250   female
## 32     Adelie         37.2          18.1            178         3900     male
## 33     Adelie         39.5          17.8            188         3300   female
## 34     Adelie         40.9          18.9            184         3900     male
## 35     Adelie         36.4          17.0            195         3325   female
## 36     Adelie         39.2          21.1            196         4150     male
## 37     Adelie         38.8          20.0            190         3950     male
## 38     Adelie         42.2          18.5            180         3550   female
## 39     Adelie         37.6          19.3            181         3300   female
## 40     Adelie         39.8          19.1            184         4650     male
## 41     Adelie         36.5          18.0            182         3150   female
## 42     Adelie         40.8          18.4            195         3900     male
## 43     Adelie         36.0          18.5            186         3100   female
## 44     Adelie         44.1          19.7            196         4400     male
## 45     Adelie         37.0          16.9            185         3000   female
## 46     Adelie         39.6          18.8            190         4600     male
## 47     Adelie         41.1          19.0            182         3425     male
## 49     Adelie         36.0          17.9            190         3450   female
## 50     Adelie         42.3          21.2            191         4150     male
## 51     Adelie         39.6          17.7            186         3500   female
## 52     Adelie         40.1          18.9            188         4300     male
## 53     Adelie         35.0          17.9            190         3450   female
## 54     Adelie         42.0          19.5            200         4050     male
## 55     Adelie         34.5          18.1            187         2900   female
## 56     Adelie         41.4          18.6            191         3700     male
## 57     Adelie         39.0          17.5            186         3550   female
## 58     Adelie         40.6          18.8            193         3800     male
## 59     Adelie         36.5          16.6            181         2850   female
## 60     Adelie         37.6          19.1            194         3750     male
## 61     Adelie         35.7          16.9            185         3150   female
## 62     Adelie         41.3          21.1            195         4400     male
## 63     Adelie         37.6          17.0            185         3600   female
## 64     Adelie         41.1          18.2            192         4050     male
## 65     Adelie         36.4          17.1            184         2850   female
## 66     Adelie         41.6          18.0            192         3950     male
## 67     Adelie         35.5          16.2            195         3350   female
## 68     Adelie         41.1          19.1            188         4100     male
## 69     Adelie         35.9          16.6            190         3050   female
## 70     Adelie         41.8          19.4            198         4450     male
## 71     Adelie         33.5          19.0            190         3600   female
## 72     Adelie         39.7          18.4            190         3900     male
## 73     Adelie         39.6          17.2            196         3550   female
## 74     Adelie         45.8          18.9            197         4150     male
## 75     Adelie         35.5          17.5            190         3700   female
## 76     Adelie         42.8          18.5            195         4250     male
## 77     Adelie         40.9          16.8            191         3700   female
## 78     Adelie         37.2          19.4            184         3900     male
## 79     Adelie         36.2          16.1            187         3550   female
## 80     Adelie         42.1          19.1            195         4000     male
## 81     Adelie         34.6          17.2            189         3200   female
## 82     Adelie         42.9          17.6            196         4700     male
## 83     Adelie         36.7          18.8            187         3800   female
## 84     Adelie         35.1          19.4            193         4200     male
## 85     Adelie         37.3          17.8            191         3350   female
## 86     Adelie         41.3          20.3            194         3550     male
## 87     Adelie         36.3          19.5            190         3800     male
## 88     Adelie         36.9          18.6            189         3500   female
## 89     Adelie         38.3          19.2            189         3950     male
## 90     Adelie         38.9          18.8            190         3600   female
## 91     Adelie         35.7          18.0            202         3550   female
## 92     Adelie         41.1          18.1            205         4300     male
## 93     Adelie         34.0          17.1            185         3400   female
## 94     Adelie         39.6          18.1            186         4450     male
## 95     Adelie         36.2          17.3            187         3300   female
## 96     Adelie         40.8          18.9            208         4300     male
## 97     Adelie         38.1          18.6            190         3700   female
## 98     Adelie         40.3          18.5            196         4350     male
## 99     Adelie         33.1          16.1            178         2900   female
## 100    Adelie         43.2          18.5            192         4100     male
## 101    Adelie         35.0          17.9            192         3725   female
## 102    Adelie         41.0          20.0            203         4725     male
## 103    Adelie         37.7          16.0            183         3075   female
## 104    Adelie         37.8          20.0            190         4250     male
## 105    Adelie         37.9          18.6            193         2925   female
## 106    Adelie         39.7          18.9            184         3550     male
## 107    Adelie         38.6          17.2            199         3750   female
## 108    Adelie         38.2          20.0            190         3900     male
## 109    Adelie         38.1          17.0            181         3175   female
## 110    Adelie         43.2          19.0            197         4775     male
## 111    Adelie         38.1          16.5            198         3825   female
## 112    Adelie         45.6          20.3            191         4600     male
## 113    Adelie         39.7          17.7            193         3200   female
## 114    Adelie         42.2          19.5            197         4275     male
## 115    Adelie         39.6          20.7            191         3900   female
## 116    Adelie         42.7          18.3            196         4075     male
## 117    Adelie         38.6          17.0            188         2900   female
## 118    Adelie         37.3          20.5            199         3775     male
## 119    Adelie         35.7          17.0            189         3350   female
## 120    Adelie         41.1          18.6            189         3325     male
## 121    Adelie         36.2          17.2            187         3150   female
## 122    Adelie         37.7          19.8            198         3500     male
## 123    Adelie         40.2          17.0            176         3450   female
## 124    Adelie         41.4          18.5            202         3875     male
## 125    Adelie         35.2          15.9            186         3050   female
## 126    Adelie         40.6          19.0            199         4000     male
## 127    Adelie         38.8          17.6            191         3275   female
## 128    Adelie         41.5          18.3            195         4300     male
## 129    Adelie         39.0          17.1            191         3050   female
## 130    Adelie         44.1          18.0            210         4000     male
## 131    Adelie         38.5          17.9            190         3325   female
## 132    Adelie         43.1          19.2            197         3500     male
## 133    Adelie         36.8          18.5            193         3500   female
## 134    Adelie         37.5          18.5            199         4475     male
## 135    Adelie         38.1          17.6            187         3425   female
## 136    Adelie         41.1          17.5            190         3900     male
## 137    Adelie         35.6          17.5            191         3175   female
## 138    Adelie         40.2          20.1            200         3975     male
## 139    Adelie         37.0          16.5            185         3400   female
## 140    Adelie         39.7          17.9            193         4250     male
## 141    Adelie         40.2          17.1            193         3400   female
## 142    Adelie         40.6          17.2            187         3475     male
## 143    Adelie         32.1          15.5            188         3050   female
## 144    Adelie         40.7          17.0            190         3725     male
## 145    Adelie         37.3          16.8            192         3000   female
## 146    Adelie         39.0          18.7            185         3650     male
## 147    Adelie         39.2          18.6            190         4250     male
## 148    Adelie         36.6          18.4            184         3475   female
## 149    Adelie         36.0          17.8            195         3450   female
## 150    Adelie         37.8          18.1            193         3750     male
## 151    Adelie         36.0          17.1            187         3700   female
## 152    Adelie         41.5          18.5            201         4000     male
## 153    Gentoo         46.1          13.2            211         4500   female
## 154    Gentoo         50.0          16.3            230         5700     male
## 155    Gentoo         48.7          14.1            210         4450   female
## 156    Gentoo         50.0          15.2            218         5700     male
## 157    Gentoo         47.6          14.5            215         5400     male
## 158    Gentoo         46.5          13.5            210         4550   female
## 159    Gentoo         45.4          14.6            211         4800   female
## 160    Gentoo         46.7          15.3            219         5200     male
## 161    Gentoo         43.3          13.4            209         4400   female
## 162    Gentoo         46.8          15.4            215         5150     male
## 163    Gentoo         40.9          13.7            214         4650   female
## 164    Gentoo         49.0          16.1            216         5550     male
## 165    Gentoo         45.5          13.7            214         4650   female
## 166    Gentoo         48.4          14.6            213         5850     male
## 167    Gentoo         45.8          14.6            210         4200   female
## 168    Gentoo         49.3          15.7            217         5850     male
## 169    Gentoo         42.0          13.5            210         4150   female
## 170    Gentoo         49.2          15.2            221         6300     male
## 171    Gentoo         46.2          14.5            209         4800   female
## 172    Gentoo         48.7          15.1            222         5350     male
## 173    Gentoo         50.2          14.3            218         5700     male
## 174    Gentoo         45.1          14.5            215         5000   female
## 175    Gentoo         46.5          14.5            213         4400   female
## 176    Gentoo         46.3          15.8            215         5050     male
## 177    Gentoo         42.9          13.1            215         5000   female
## 178    Gentoo         46.1          15.1            215         5100     male
## 180    Gentoo         47.8          15.0            215         5650     male
## 181    Gentoo         48.2          14.3            210         4600   female
## 182    Gentoo         50.0          15.3            220         5550     male
## 183    Gentoo         47.3          15.3            222         5250     male
## 184    Gentoo         42.8          14.2            209         4700   female
## 185    Gentoo         45.1          14.5            207         5050   female
## 186    Gentoo         59.6          17.0            230         6050     male
## 187    Gentoo         49.1          14.8            220         5150   female
## 188    Gentoo         48.4          16.3            220         5400     male
## 189    Gentoo         42.6          13.7            213         4950   female
## 190    Gentoo         44.4          17.3            219         5250     male
## 191    Gentoo         44.0          13.6            208         4350   female
## 192    Gentoo         48.7          15.7            208         5350     male
## 193    Gentoo         42.7          13.7            208         3950   female
## 194    Gentoo         49.6          16.0            225         5700     male
## 195    Gentoo         45.3          13.7            210         4300   female
## 196    Gentoo         49.6          15.0            216         4750     male
## 197    Gentoo         50.5          15.9            222         5550     male
## 198    Gentoo         43.6          13.9            217         4900   female
## 199    Gentoo         45.5          13.9            210         4200   female
## 200    Gentoo         50.5          15.9            225         5400     male
## 201    Gentoo         44.9          13.3            213         5100   female
## 202    Gentoo         45.2          15.8            215         5300     male
## 203    Gentoo         46.6          14.2            210         4850   female
## 204    Gentoo         48.5          14.1            220         5300     male
## 205    Gentoo         45.1          14.4            210         4400   female
## 206    Gentoo         50.1          15.0            225         5000     male
## 207    Gentoo         46.5          14.4            217         4900   female
## 208    Gentoo         45.0          15.4            220         5050     male
## 209    Gentoo         43.8          13.9            208         4300   female
## 210    Gentoo         45.5          15.0            220         5000     male
## 211    Gentoo         43.2          14.5            208         4450   female
## 212    Gentoo         50.4          15.3            224         5550     male
## 213    Gentoo         45.3          13.8            208         4200   female
## 214    Gentoo         46.2          14.9            221         5300     male
## 215    Gentoo         45.7          13.9            214         4400   female
## 216    Gentoo         54.3          15.7            231         5650     male
## 217    Gentoo         45.8          14.2            219         4700   female
## 218    Gentoo         49.8          16.8            230         5700     male
## 220    Gentoo         49.5          16.2            229         5800     male
## 221    Gentoo         43.5          14.2            220         4700   female
## 222    Gentoo         50.7          15.0            223         5550     male
## 223    Gentoo         47.7          15.0            216         4750   female
## 224    Gentoo         46.4          15.6            221         5000     male
## 225    Gentoo         48.2          15.6            221         5100     male
## 226    Gentoo         46.5          14.8            217         5200   female
## 227    Gentoo         46.4          15.0            216         4700   female
## 228    Gentoo         48.6          16.0            230         5800     male
## 229    Gentoo         47.5          14.2            209         4600   female
## 230    Gentoo         51.1          16.3            220         6000     male
## 231    Gentoo         45.2          13.8            215         4750   female
## 232    Gentoo         45.2          16.4            223         5950     male
## 233    Gentoo         49.1          14.5            212         4625   female
## 234    Gentoo         52.5          15.6            221         5450     male
## 235    Gentoo         47.4          14.6            212         4725   female
## 236    Gentoo         50.0          15.9            224         5350     male
## 237    Gentoo         44.9          13.8            212         4750   female
## 238    Gentoo         50.8          17.3            228         5600     male
## 239    Gentoo         43.4          14.4            218         4600   female
## 240    Gentoo         51.3          14.2            218         5300     male
## 241    Gentoo         47.5          14.0            212         4875   female
## 242    Gentoo         52.1          17.0            230         5550     male
## 243    Gentoo         47.5          15.0            218         4950   female
## 244    Gentoo         52.2          17.1            228         5400     male
## 245    Gentoo         45.5          14.5            212         4750   female
## 246    Gentoo         49.5          16.1            224         5650     male
## 247    Gentoo         44.5          14.7            214         4850   female
## 248    Gentoo         50.8          15.7            226         5200     male
## 249    Gentoo         49.4          15.8            216         4925     male
## 250    Gentoo         46.9          14.6            222         4875   female
## 251    Gentoo         48.4          14.4            203         4625   female
## 252    Gentoo         51.1          16.5            225         5250     male
## 253    Gentoo         48.5          15.0            219         4850   female
## 254    Gentoo         55.9          17.0            228         5600     male
## 255    Gentoo         47.2          15.5            215         4975   female
## 256    Gentoo         49.1          15.0            228         5500     male
## 258    Gentoo         46.8          16.1            215         5500     male
## 259    Gentoo         41.7          14.7            210         4700   female
## 260    Gentoo         53.4          15.8            219         5500     male
## 261    Gentoo         43.3          14.0            208         4575   female
## 262    Gentoo         48.1          15.1            209         5500     male
## 263    Gentoo         50.5          15.2            216         5000   female
## 264    Gentoo         49.8          15.9            229         5950     male
## 265    Gentoo         43.5          15.2            213         4650   female
## 266    Gentoo         51.5          16.3            230         5500     male
## 267    Gentoo         46.2          14.1            217         4375   female
## 268    Gentoo         55.1          16.0            230         5850     male
## 270    Gentoo         48.8          16.2            222         6000     male
## 271    Gentoo         47.2          13.7            214         4925   female
## 273    Gentoo         46.8          14.3            215         4850   female
## 274    Gentoo         50.4          15.7            222         5750     male
## 275    Gentoo         45.2          14.8            212         5200   female
## 276    Gentoo         49.9          16.1            213         5400     male
## 277 Chinstrap         46.5          17.9            192         3500   female
## 278 Chinstrap         50.0          19.5            196         3900     male
## 279 Chinstrap         51.3          19.2            193         3650     male
## 280 Chinstrap         45.4          18.7            188         3525   female
## 281 Chinstrap         52.7          19.8            197         3725     male
## 282 Chinstrap         45.2          17.8            198         3950   female
## 283 Chinstrap         46.1          18.2            178         3250   female
## 284 Chinstrap         51.3          18.2            197         3750     male
## 285 Chinstrap         46.0          18.9            195         4150   female
## 286 Chinstrap         51.3          19.9            198         3700     male
## 287 Chinstrap         46.6          17.8            193         3800   female
## 288 Chinstrap         51.7          20.3            194         3775     male
## 289 Chinstrap         47.0          17.3            185         3700   female
## 290 Chinstrap         52.0          18.1            201         4050     male
## 291 Chinstrap         45.9          17.1            190         3575   female
## 292 Chinstrap         50.5          19.6            201         4050     male
## 293 Chinstrap         50.3          20.0            197         3300     male
## 294 Chinstrap         58.0          17.8            181         3700   female
## 295 Chinstrap         46.4          18.6            190         3450   female
## 296 Chinstrap         49.2          18.2            195         4400     male
## 297 Chinstrap         42.4          17.3            181         3600   female
## 298 Chinstrap         48.5          17.5            191         3400     male
## 299 Chinstrap         43.2          16.6            187         2900   female
## 300 Chinstrap         50.6          19.4            193         3800     male
## 301 Chinstrap         46.7          17.9            195         3300   female
## 302 Chinstrap         52.0          19.0            197         4150     male
## 303 Chinstrap         50.5          18.4            200         3400   female
## 304 Chinstrap         49.5          19.0            200         3800     male
## 305 Chinstrap         46.4          17.8            191         3700   female
## 306 Chinstrap         52.8          20.0            205         4550     male
## 307 Chinstrap         40.9          16.6            187         3200   female
## 308 Chinstrap         54.2          20.8            201         4300     male
## 309 Chinstrap         42.5          16.7            187         3350   female
## 310 Chinstrap         51.0          18.8            203         4100     male
## 311 Chinstrap         49.7          18.6            195         3600     male
## 312 Chinstrap         47.5          16.8            199         3900   female
## 313 Chinstrap         47.6          18.3            195         3850   female
## 314 Chinstrap         52.0          20.7            210         4800     male
## 315 Chinstrap         46.9          16.6            192         2700   female
## 316 Chinstrap         53.5          19.9            205         4500     male
## 317 Chinstrap         49.0          19.5            210         3950     male
## 318 Chinstrap         46.2          17.5            187         3650   female
## 319 Chinstrap         50.9          19.1            196         3550     male
## 320 Chinstrap         45.5          17.0            196         3500   female
## 321 Chinstrap         50.9          17.9            196         3675   female
## 322 Chinstrap         50.8          18.5            201         4450     male
## 323 Chinstrap         50.1          17.9            190         3400   female
## 324 Chinstrap         49.0          19.6            212         4300     male
## 325 Chinstrap         51.5          18.7            187         3250     male
## 326 Chinstrap         49.8          17.3            198         3675   female
## 327 Chinstrap         48.1          16.4            199         3325   female
## 328 Chinstrap         51.4          19.0            201         3950     male
## 329 Chinstrap         45.7          17.3            193         3600   female
## 330 Chinstrap         50.7          19.7            203         4050     male
## 331 Chinstrap         42.5          17.3            187         3350   female
## 332 Chinstrap         52.2          18.8            197         3450     male
## 333 Chinstrap         45.2          16.6            191         3250   female
## 334 Chinstrap         49.3          19.9            203         4050     male
## 335 Chinstrap         50.2          18.8            202         3800     male
## 336 Chinstrap         45.6          19.4            194         3525   female
## 337 Chinstrap         51.9          19.5            206         3950     male
## 338 Chinstrap         46.8          16.5            189         3650   female
## 339 Chinstrap         45.7          17.0            195         3650   female
## 340 Chinstrap         55.8          19.8            207         4000     male
## 341 Chinstrap         43.5          18.1            202         3400   female
## 342 Chinstrap         49.6          18.2            193         3775     male
## 343 Chinstrap         50.8          19.0            210         4100     male
## 344 Chinstrap         50.2          18.7            198         3775   female
##          bmi
## 1   20.71823
## 2   20.43011
## 3   16.66667
## 5   17.87565
## 6   19.21053
## 7   20.02762
## 8   23.97436
## 13  17.58242
## 14  19.89529
## 15  22.22222
## 16  20.00000
## 17  17.69231
## 18  22.84264
## 19  18.07065
## 20  21.64948
## 21  19.54023
## 22  20.00000
## 23  20.10582
## 24  21.35135
## 25  21.11111
## 26  20.32086
## 27  19.39891
## 28  17.11230
## 29  18.31395
## 30  21.94444
## 31  18.25843
## 32  21.91011
## 33  17.55319
## 34  21.19565
## 35  17.05128
## 36  21.17347
## 37  20.78947
## 38  19.72222
## 39  18.23204
## 40  25.27174
## 41  17.30769
## 42  20.00000
## 43  16.66667
## 44  22.44898
## 45  16.21622
## 46  24.21053
## 47  18.81868
## 49  18.15789
## 50  21.72775
## 51  18.81720
## 52  22.87234
## 53  18.15789
## 54  20.25000
## 55  15.50802
## 56  19.37173
## 57  19.08602
## 58  19.68912
## 59  15.74586
## 60  19.32990
## 61  17.02703
## 62  22.56410
## 63  19.45946
## 64  21.09375
## 65  15.48913
## 66  20.57292
## 67  17.17949
## 68  21.80851
## 69  16.05263
## 70  22.47475
## 71  18.94737
## 72  20.52632
## 73  18.11224
## 74  21.06599
## 75  19.47368
## 76  21.79487
## 77  19.37173
## 78  21.19565
## 79  18.98396
## 80  20.51282
## 81  16.93122
## 82  23.97959
## 83  20.32086
## 84  21.76166
## 85  17.53927
## 86  18.29897
## 87  20.00000
## 88  18.51852
## 89  20.89947
## 90  18.94737
## 91  17.57426
## 92  20.97561
## 93  18.37838
## 94  23.92473
## 95  17.64706
## 96  20.67308
## 97  19.47368
## 98  22.19388
## 99  16.29213
## 100 21.35417
## 101 19.40104
## 102 23.27586
## 103 16.80328
## 104 22.36842
## 105 15.15544
## 106 19.29348
## 107 18.84422
## 108 20.52632
## 109 17.54144
## 110 24.23858
## 111 19.31818
## 112 24.08377
## 113 16.58031
## 114 21.70051
## 115 20.41885
## 116 20.79082
## 117 15.42553
## 118 18.96985
## 119 17.72487
## 120 17.59259
## 121 16.84492
## 122 17.67677
## 123 19.60227
## 124 19.18317
## 125 16.39785
## 126 20.10050
## 127 17.14660
## 128 22.05128
## 129 15.96859
## 130 19.04762
## 131 17.50000
## 132 17.76650
## 133 18.13472
## 134 22.48744
## 135 18.31551
## 136 20.52632
## 137 16.62304
## 138 19.87500
## 139 18.37838
## 140 22.02073
## 141 17.61658
## 142 18.58289
## 143 16.22340
## 144 19.60526
## 145 15.62500
## 146 19.72973
## 147 22.36842
## 148 18.88587
## 149 17.69231
## 150 19.43005
## 151 19.78610
## 152 19.90050
## 153 21.32701
## 154 24.78261
## 155 21.19048
## 156 26.14679
## 157 25.11628
## 158 21.66667
## 159 22.74882
## 160 23.74429
## 161 21.05263
## 162 23.95349
## 163 21.72897
## 164 25.69444
## 165 21.72897
## 166 27.46479
## 167 20.00000
## 168 26.95853
## 169 19.76190
## 170 28.50679
## 171 22.96651
## 172 24.09910
## 173 26.14679
## 174 23.25581
## 175 20.65728
## 176 23.48837
## 177 23.25581
## 178 23.72093
## 180 26.27907
## 181 21.90476
## 182 25.22727
## 183 23.64865
## 184 22.48804
## 185 24.39614
## 186 26.30435
## 187 23.40909
## 188 24.54545
## 189 23.23944
## 190 23.97260
## 191 20.91346
## 192 25.72115
## 193 18.99038
## 194 25.33333
## 195 20.47619
## 196 21.99074
## 197 25.00000
## 198 22.58065
## 199 20.00000
## 200 24.00000
## 201 23.94366
## 202 24.65116
## 203 23.09524
## 204 24.09091
## 205 20.95238
## 206 22.22222
## 207 22.58065
## 208 22.95455
## 209 20.67308
## 210 22.72727
## 211 21.39423
## 212 24.77679
## 213 20.19231
## 214 23.98190
## 215 20.56075
## 216 24.45887
## 217 21.46119
## 218 24.78261
## 220 25.32751
## 221 21.36364
## 222 24.88789
## 223 21.99074
## 224 22.62443
## 225 23.07692
## 226 23.96313
## 227 21.75926
## 228 25.21739
## 229 22.00957
## 230 27.27273
## 231 22.09302
## 232 26.68161
## 233 21.81604
## 234 24.66063
## 235 22.28774
## 236 23.88393
## 237 22.40566
## 238 24.56140
## 239 21.10092
## 240 24.31193
## 241 22.99528
## 242 24.13043
## 243 22.70642
## 244 23.68421
## 245 22.40566
## 246 25.22321
## 247 22.66355
## 248 23.00885
## 249 22.80093
## 250 21.95946
## 251 22.78325
## 252 23.33333
## 253 22.14612
## 254 24.56140
## 255 23.13953
## 256 24.12281
## 258 25.58140
## 259 22.38095
## 260 25.11416
## 261 21.99519
## 262 26.31579
## 263 23.14815
## 264 25.98253
## 265 21.83099
## 266 23.91304
## 267 20.16129
## 268 25.43478
## 270 27.02703
## 271 23.01402
## 273 22.55814
## 274 25.90090
## 275 24.52830
## 276 25.35211
## 277 18.22917
## 278 19.89796
## 279 18.91192
## 280 18.75000
## 281 18.90863
## 282 19.94949
## 283 18.25843
## 284 19.03553
## 285 21.28205
## 286 18.68687
## 287 19.68912
## 288 19.45876
## 289 20.00000
## 290 20.14925
## 291 18.81579
## 292 20.14925
## 293 16.75127
## 294 20.44199
## 295 18.15789
## 296 22.56410
## 297 19.88950
## 298 17.80105
## 299 15.50802
## 300 19.68912
## 301 16.92308
## 302 21.06599
## 303 17.00000
## 304 19.00000
## 305 19.37173
## 306 22.19512
## 307 17.11230
## 308 21.39303
## 309 17.91444
## 310 20.19704
## 311 18.46154
## 312 19.59799
## 313 19.74359
## 314 22.85714
## 315 14.06250
## 316 21.95122
## 317 18.80952
## 318 19.51872
## 319 18.11224
## 320 17.85714
## 321 18.75000
## 322 22.13930
## 323 17.89474
## 324 20.28302
## 325 17.37968
## 326 18.56061
## 327 16.70854
## 328 19.65174
## 329 18.65285
## 330 19.95074
## 331 17.91444
## 332 17.51269
## 333 17.01571
## 334 19.95074
## 335 18.81188
## 336 18.17010
## 337 19.17476
## 338 19.31217
## 339 18.71795
## 340 19.32367
## 341 16.83168
## 342 19.55959
## 343 19.52381
## 344 19.06566
Türlere göre “bmi” değişkeninin ortalama, standart sapma, minimum ve maksimum değerlerini hesaplayarak sonuçlarını tablo halinde gösteriyoruz.
penguins3 %>%
group_by(tur) %>%
  summarise(
    ortalama= mean(bmi),
    sd= sd(bmi),
    min=min(bmi),
    max=max(bmi)
  )
## # A tibble: 3 × 5
##   tur       ortalama    sd   min   max
##   <fct>        <dbl> <dbl> <dbl> <dbl>
## 1 Adelie        19.5  2.18  15.2  25.3
## 2 Chinstrap     19.0  1.60  14.1  22.9
## 3 Gentoo        23.4  1.88  19.0  28.5
Ortalamalara bakıldığında en yüksek ortalamanın Gentoo türünde olduğu görülmektedir.
Tabloya ek olarak kutu grafiğini hazırlıyoruz.
library(ggplot2)
ggplot(penguins3, aes(x = tur, y = bmi, fill = tur)) +
  geom_boxplot(alpha = 0.7) +
  labs(
    title = "Turlere Gore Penguen 'BMI' Dagilimi",
    x = "Tur",
    y = "bmi"
  ) +
  theme_minimal()
Kutu grafiği incelendiğinde türler bakımından fark olduğu
görülmektedir. İstatistiksel açıdan fark olup olmadığına karar vermek
için aov() fonksiyonu ile anova testi yapıp sonuçlarına
bakıyoruz.
anova <- aov(bmi ~ tur, data = penguins3)
summary(anova)
##              Df Sum Sq Mean Sq F value Pr(>F)    
## tur           2   1277   638.6   164.9 <2e-16 ***
## Residuals   330   1278     3.9                   
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
Türler arasında istatistiksel açıdan anlamlı bir fark bulunmaktadır (p<0.001).
Eksik gözlemlerin kaldırıldığı ve verilerin türkçe olarak isimlendirildiği “penguins3” veri setinden çalışmaya devam ediyoruz.
Gaga uzunluğu ve gaga derinliği arasındaki ilişkiyi inceleyeceğiz.
Öncelikle geom_point() fonksiyonu ile scatter plot
çiziyoruz.
ggplot(penguins3, aes(x=gagauzunlugu,y=gagaderinligi))+
  geom_point() +
  geom_smooth(method="lm")
## `geom_smooth()` using formula = 'y ~ x'
Scatter plot incelendiğinde gaga uzunluğu arttıkça gaga derinliğinin azaldığı görülmektedir. Eğim incelendiğinde aralarında negatif bir ilişki bulunmaktadır.
Regresyon modeli kurarak ilişkinin anlamlılığına bakıyoruz.
model <- lm(formula = gagauzunlugu ~ gagaderinligi, data = penguins3)
summary(model)
## 
## Call:
## lm(formula = gagauzunlugu ~ gagaderinligi, data = penguins3)
## 
## Residuals:
##      Min       1Q   Median       3Q      Max 
## -12.9498  -3.9530  -0.3657   3.7327  15.5025 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept)    54.8909     2.5673  21.380  < 2e-16 ***
## gagaderinligi  -0.6349     0.1486  -4.273 2.53e-05 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 5.332 on 331 degrees of freedom
## Multiple R-squared:  0.05227,    Adjusted R-squared:  0.04941 
## F-statistic: 18.26 on 1 and 331 DF,  p-value: 2.528e-05
Türler arasında istatistiksel açıdan anlamlı bir fark bulunmaktadır (p<0.001).
Türlere göre gruplama yaparak “penguins4” veri setini elde ediyoruz.
penguins4<-penguins3 %>%
group_by(tur)
3 türe ait scatter plot’u birlikte çizmek için:
ggplot(penguins4, aes(x = gagauzunlugu, y = gagaderinligi, 
                      color = tur)) +
  geom_point(size = 2.5, alpha = 0.8) +
  geom_smooth(method = "lm", se = FALSE, linewidth = 1) +
  labs(
    title = "Turlere Gore Gaga Uzunlugu ve Gaga Derinligi",
    x = "Gaga Uzunlugu (mm)",
    y = "Gaga Derinligi (mm)"
  ) +
  theme_minimal()
## `geom_smooth()` using formula = 'y ~ x'
Scatter plot incelendiğinde her bir türde gaga uzunluğu arttıkça gaga derinliğinin de arttığı görülmektedir.
Şimdi her bir türe ait regresyon modellerini oluşturalım.
Adelie türüne ait regresyon modeli:
model <- lm(formula = gagauzunlugu ~ gagaderinligi, 
            data = subset(penguins4, tur == "Adelie"))
summary(model)
## 
## Call:
## lm(formula = gagauzunlugu ~ gagaderinligi, data = subset(penguins4, 
##     tur == "Adelie"))
## 
## Residuals:
##     Min      1Q  Median      3Q     Max 
## -6.5431 -1.8369  0.0158  1.7181  6.5104 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept)    23.3668     3.0869   7.570 4.10e-12 ***
## gagaderinligi   0.8425     0.1679   5.018 1.51e-06 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 2.465 on 144 degrees of freedom
## Multiple R-squared:  0.1489, Adjusted R-squared:  0.1429 
## F-statistic: 25.18 on 1 and 144 DF,  p-value: 1.515e-06
Adelie türünde, gaga uzunluğu arttıkça gaga derinliği istatistiksel açıdan anlamlı bir şekilde artmaktadır (β=0,8425, p<0.001).
Chinstrap türüne ait regresyon modeli:
model <- lm(formula = gagauzunlugu ~ gagaderinligi, 
            data = subset(penguins4, tur == "Chinstrap"))
summary(model)
## 
## Call:
## lm(formula = gagauzunlugu ~ gagaderinligi, data = subset(penguins4, 
##     tur == "Chinstrap"))
## 
## Residuals:
##     Min      1Q  Median      3Q     Max 
## -5.1163 -1.2641 -0.1254  1.4807 10.3590 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept)     13.428      5.057   2.655  0.00992 ** 
## gagaderinligi    1.922      0.274   7.015 1.53e-09 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 2.547 on 66 degrees of freedom
## Multiple R-squared:  0.4271, Adjusted R-squared:  0.4184 
## F-statistic: 49.21 on 1 and 66 DF,  p-value: 1.526e-09
Chinstrap türünde, gaga uzunluğu arttıkça gaga derinliği istatistiksel açıdan anlamlı bir şekilde artmaktadır (β=1,922, p<0.001).
Gentoo türüne ait regresyon modeli:
model <- lm(formula = gagauzunlugu ~ gagaderinligi, 
            data = subset(penguins4, tur == "Gentoo"))
summary(model)
## 
## Call:
## lm(formula = gagauzunlugu ~ gagaderinligi, data = subset(penguins4, 
##     tur == "Gentoo"))
## 
## Residuals:
##    Min     1Q Median     3Q    Max 
## -7.914 -1.445  0.125  1.315  7.904 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept)    16.6702     3.3110   5.035 1.75e-06 ***
## gagaderinligi   2.0603     0.2203   9.352 7.34e-16 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 2.36 on 117 degrees of freedom
## Multiple R-squared:  0.4277, Adjusted R-squared:  0.4229 
## F-statistic: 87.45 on 1 and 117 DF,  p-value: 7.337e-16
Gentoo türünde, gaga uzunluğu arttıkça gaga derinliği istatistiksel açıdan anlamlı bir şekilde artmaktadır(β=2,0603, p<0.001).
Her tür için regresyon grafikleri çizelim.
Adelie için regresyon grafiğini çizmek için:
penguins5 <- penguins4 %>% filter(tur == "Adelie")
ggplot(penguins5, aes(x = gagauzunlugu, y = gagaderinligi, 
                      color = tur)) +
   geom_point() +
   geom_smooth(method="lm")
## `geom_smooth()` using formula = 'y ~ x'
   theme_minimal()
## <theme> List of 144
##  $ line                            : <ggplot2::element_line>
##   ..@ colour       : chr "black"
##   ..@ linewidth    : num 0.5
##   ..@ linetype     : num 1
##   ..@ lineend      : chr "butt"
##   ..@ linejoin     : chr "round"
##   ..@ arrow        : logi FALSE
##   ..@ arrow.fill   : chr "black"
##   ..@ inherit.blank: logi TRUE
##  $ rect                            : <ggplot2::element_rect>
##   ..@ fill         : chr "white"
##   ..@ colour       : chr "black"
##   ..@ linewidth    : num 0.5
##   ..@ linetype     : num 1
##   ..@ linejoin     : chr "round"
##   ..@ inherit.blank: logi TRUE
##  $ text                            : <ggplot2::element_text>
##   ..@ family       : chr ""
##   ..@ face         : chr "plain"
##   ..@ italic       : chr NA
##   ..@ fontweight   : num NA
##   ..@ fontwidth    : num NA
##   ..@ colour       : chr "black"
##   ..@ size         : num 11
##   ..@ hjust        : num 0.5
##   ..@ vjust        : num 0.5
##   ..@ angle        : num 0
##   ..@ lineheight   : num 0.9
##   ..@ margin       : <ggplot2::margin> num [1:4] 0 0 0 0
##   ..@ debug        : logi FALSE
##   ..@ inherit.blank: logi TRUE
##  $ title                           : <ggplot2::element_text>
##   ..@ family       : NULL
##   ..@ face         : NULL
##   ..@ italic       : chr NA
##   ..@ fontweight   : num NA
##   ..@ fontwidth    : num NA
##   ..@ colour       : NULL
##   ..@ size         : NULL
##   ..@ hjust        : NULL
##   ..@ vjust        : NULL
##   ..@ angle        : NULL
##   ..@ lineheight   : NULL
##   ..@ margin       : NULL
##   ..@ debug        : NULL
##   ..@ inherit.blank: logi TRUE
##  $ point                           : <ggplot2::element_point>
##   ..@ colour       : chr "black"
##   ..@ shape        : num 19
##   ..@ size         : num 1.5
##   ..@ fill         : chr "white"
##   ..@ stroke       : num 0.5
##   ..@ inherit.blank: logi TRUE
##  $ polygon                         : <ggplot2::element_polygon>
##   ..@ fill         : chr "white"
##   ..@ colour       : chr "black"
##   ..@ linewidth    : num 0.5
##   ..@ linetype     : num 1
##   ..@ linejoin     : chr "round"
##   ..@ inherit.blank: logi TRUE
##  $ geom                            : <ggplot2::element_geom>
##   ..@ ink        : chr "black"
##   ..@ paper      : chr "white"
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##  @ complete: logi TRUE
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Chinstrap için regresyon grafiğini çizmek için:
penguins6 <- penguins4 %>% filter(tur =="Chinstrap")
ggplot(penguins6, aes(x = gagauzunlugu, y = gagaderinligi, 
                      color = tur)) +
   geom_point() +
   geom_smooth(method="lm")
## `geom_smooth()` using formula = 'y ~ x'
   theme_minimal()
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Gentoo için regresyon grafiğini çizmek için:
penguins7 <- penguins4 %>% filter(tur =="Gentoo")
ggplot(penguins7, aes(x = gagauzunlugu, y = gagaderinligi, 
                      color = tur)) +
   geom_point() +
   geom_smooth(method="lm")
## `geom_smooth()` using formula = 'y ~ x'
   theme_minimal()
## <theme> List of 144
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Normal şartlarda gaga uzunluğu ve gaga derinliği iki ilişkili fiziksel yapının biri arttıkça diğerinin de artması beklenir. Fakat veri setini türlere ayırmadan incelediğimizde gaga uzunluğu arttıkça gaga derinliğinin hafif eğimli bir şekilde azaldığı görülmüştür. Türlere göre veriyi incelediğimizde gaga uzunluğu ve gaga derinliği ilişkisi yön değiştirerek pozitif bir hale gelmiş, gaga uzunluğu arttıkça gaga derinliğinin de arttığı görülmüştür.
Bu sebeple analiz yaparken alt boyutlara da bakarak analizi gerçekleştirmemiz gerekmektedir. Yoksa var olan bir durumu genel veri üzerinden yanlış yorumlayabilme ihtimalimiz olur. Simpson paradoksu tüm verinin bize sunduğu ile alt grupların bize sunduğunun farklı olması durumudur. İncelemesini yaptığımız penguen verisinde de aynı paradoks mevcut durumdadır.
Aov() fonksiyonu ile ANOVA testi yapmayı, basit doğrusal
regresyon modeli oluşturmayı, R Markdown dosyasına içindekiler bölümü
eklemeyi öğrendim. R ile çalışmayı seviyorum :)