Wrangling Dataset state.x77

library(datasets)
df <- as.data.frame(state.x77)
head(df)
##            Population Income Illiteracy Life Exp Murder HS Grad Frost   Area
## Alabama          3615   3624        2.1    69.05   15.1    41.3    20  50708
## Alaska            365   6315        1.5    69.31   11.3    66.7   152 566432
## Arizona          2212   4530        1.8    70.55    7.8    58.1    15 113417
## Arkansas         2110   3378        1.9    70.66   10.1    39.9    65  51945
## California      21198   5114        1.1    71.71   10.3    62.6    20 156361
## Colorado         2541   4884        0.7    72.06    6.8    63.9   166 103766
library(dplyr)
glimpse(df)
## Rows: 50
## Columns: 8
## $ Population <dbl> 3615, 365, 2212, 2110, 21198, 2541, 3100, 579, 8277, 4931, …
## $ Income     <dbl> 3624, 6315, 4530, 3378, 5114, 4884, 5348, 4809, 4815, 4091,…
## $ Illiteracy <dbl> 2.1, 1.5, 1.8, 1.9, 1.1, 0.7, 1.1, 0.9, 1.3, 2.0, 1.9, 0.6,…
## $ `Life Exp` <dbl> 69.05, 69.31, 70.55, 70.66, 71.71, 72.06, 72.48, 70.06, 70.…
## $ Murder     <dbl> 15.1, 11.3, 7.8, 10.1, 10.3, 6.8, 3.1, 6.2, 10.7, 13.9, 6.2…
## $ `HS Grad`  <dbl> 41.3, 66.7, 58.1, 39.9, 62.6, 63.9, 56.0, 54.6, 52.6, 40.6,…
## $ Frost      <dbl> 20, 152, 15, 65, 20, 166, 139, 103, 11, 60, 0, 126, 127, 12…
## $ Area       <dbl> 50708, 566432, 113417, 51945, 156361, 103766, 4862, 1982, 5…

Penggunaan Filter

Memfilter negara bagian dengan Income di atas rata-rata

df %>% filter(Income>(mean(df$Income)))
##               Population Income Illiteracy Life Exp Murder HS Grad Frost   Area
## Alaska               365   6315        1.5    69.31   11.3    66.7   152 566432
## Arizona             2212   4530        1.8    70.55    7.8    58.1    15 113417
## California         21198   5114        1.1    71.71   10.3    62.6    20 156361
## Colorado            2541   4884        0.7    72.06    6.8    63.9   166 103766
## Connecticut         3100   5348        1.1    72.48    3.1    56.0   139   4862
## Delaware             579   4809        0.9    70.06    6.2    54.6   103   1982
## Florida             8277   4815        1.3    70.66   10.7    52.6    11  54090
## Hawaii               868   4963        1.9    73.60    6.2    61.9     0   6425
## Illinois           11197   5107        0.9    70.14   10.3    52.6   127  55748
## Indiana             5313   4458        0.7    70.88    7.1    52.9   122  36097
## Iowa                2861   4628        0.5    72.56    2.3    59.0   140  55941
## Kansas              2280   4669        0.6    72.58    4.5    59.9   114  81787
## Maryland            4122   5299        0.9    70.22    8.5    52.3   101   9891
## Massachusetts       5814   4755        1.1    71.83    3.3    58.5   103   7826
## Michigan            9111   4751        0.9    70.63   11.1    52.8   125  56817
## Minnesota           3921   4675        0.6    72.96    2.3    57.6   160  79289
## Nebraska            1544   4508        0.6    72.60    2.9    59.3   139  76483
## Nevada               590   5149        0.5    69.03   11.5    65.2   188 109889
## New Jersey          7333   5237        1.1    70.93    5.2    52.5   115   7521
## New York           18076   4903        1.4    70.55   10.9    52.7    82  47831
## North Dakota         637   5087        0.8    72.78    1.4    50.3   186  69273
## Ohio               10735   4561        0.8    70.82    7.4    53.2   124  40975
## Oregon              2284   4660        0.6    72.13    4.2    60.0    44  96184
## Pennsylvania       11860   4449        1.0    70.43    6.1    50.2   126  44966
## Rhode Island         931   4558        1.3    71.90    2.4    46.4   127   1049
## Virginia            4981   4701        1.4    70.08    9.5    47.8    85  39780
## Washington          3559   4864        0.6    71.72    4.3    63.5    32  66570
## Wisconsin           4589   4468        0.7    72.48    3.0    54.5   149  54464
## Wyoming              376   4566        0.6    70.29    6.9    62.9   173  97203

Memfilter negara bagian dengan Murder di bawah rata-rata

df %>% filter(Murder<(mean(df$Murder)))
##               Population Income Illiteracy Life Exp Murder HS Grad Frost   Area
## Colorado            2541   4884        0.7    72.06    6.8    63.9   166 103766
## Connecticut         3100   5348        1.1    72.48    3.1    56.0   139   4862
## Delaware             579   4809        0.9    70.06    6.2    54.6   103   1982
## Hawaii               868   4963        1.9    73.60    6.2    61.9     0   6425
## Idaho                813   4119        0.6    71.87    5.3    59.5   126  82677
## Indiana             5313   4458        0.7    70.88    7.1    52.9   122  36097
## Iowa                2861   4628        0.5    72.56    2.3    59.0   140  55941
## Kansas              2280   4669        0.6    72.58    4.5    59.9   114  81787
## Maine               1058   3694        0.7    70.39    2.7    54.7   161  30920
## Massachusetts       5814   4755        1.1    71.83    3.3    58.5   103   7826
## Minnesota           3921   4675        0.6    72.96    2.3    57.6   160  79289
## Montana              746   4347        0.6    70.56    5.0    59.2   155 145587
## Nebraska            1544   4508        0.6    72.60    2.9    59.3   139  76483
## New Hampshire        812   4281        0.7    71.23    3.3    57.6   174   9027
## New Jersey          7333   5237        1.1    70.93    5.2    52.5   115   7521
## North Dakota         637   5087        0.8    72.78    1.4    50.3   186  69273
## Oklahoma            2715   3983        1.1    71.42    6.4    51.6    82  68782
## Oregon              2284   4660        0.6    72.13    4.2    60.0    44  96184
## Pennsylvania       11860   4449        1.0    70.43    6.1    50.2   126  44966
## Rhode Island         931   4558        1.3    71.90    2.4    46.4   127   1049
## South Dakota         681   4167        0.5    72.08    1.7    53.3   172  75955
## Utah                1203   4022        0.6    72.90    4.5    67.3   137  82096
## Vermont              472   3907        0.6    71.64    5.5    57.1   168   9267
## Washington          3559   4864        0.6    71.72    4.3    63.5    32  66570
## West Virginia       1799   3617        1.4    69.48    6.7    41.6   100  24070
## Wisconsin           4589   4468        0.7    72.48    3.0    54.5   149  54464
## Wyoming              376   4566        0.6    70.29    6.9    62.9   173  97203

Penggunaan Select

Mengambil kolom Population dan Area

df %>% select(Population,Area)
##                Population   Area
## Alabama              3615  50708
## Alaska                365 566432
## Arizona              2212 113417
## Arkansas             2110  51945
## California          21198 156361
## Colorado             2541 103766
## Connecticut          3100   4862
## Delaware              579   1982
## Florida              8277  54090
## Georgia              4931  58073
## Hawaii                868   6425
## Idaho                 813  82677
## Illinois            11197  55748
## Indiana              5313  36097
## Iowa                 2861  55941
## Kansas               2280  81787
## Kentucky             3387  39650
## Louisiana            3806  44930
## Maine                1058  30920
## Maryland             4122   9891
## Massachusetts        5814   7826
## Michigan             9111  56817
## Minnesota            3921  79289
## Mississippi          2341  47296
## Missouri             4767  68995
## Montana               746 145587
## Nebraska             1544  76483
## Nevada                590 109889
## New Hampshire         812   9027
## New Jersey           7333   7521
## New Mexico           1144 121412
## New York            18076  47831
## North Carolina       5441  48798
## North Dakota          637  69273
## Ohio                10735  40975
## Oklahoma             2715  68782
## Oregon               2284  96184
## Pennsylvania        11860  44966
## Rhode Island          931   1049
## South Carolina       2816  30225
## South Dakota          681  75955
## Tennessee            4173  41328
## Texas               12237 262134
## Utah                 1203  82096
## Vermont               472   9267
## Virginia             4981  39780
## Washington           3559  66570
## West Virginia        1799  24070
## Wisconsin            4589  54464
## Wyoming               376  97203

Mengambil kolom Illiteracy, Life Exp, Murder, HS Grad

df %>% select(-Population,-Area,-Income,-Frost)
##                Illiteracy Life Exp Murder HS Grad
## Alabama               2.1    69.05   15.1    41.3
## Alaska                1.5    69.31   11.3    66.7
## Arizona               1.8    70.55    7.8    58.1
## Arkansas              1.9    70.66   10.1    39.9
## California            1.1    71.71   10.3    62.6
## Colorado              0.7    72.06    6.8    63.9
## Connecticut           1.1    72.48    3.1    56.0
## Delaware              0.9    70.06    6.2    54.6
## Florida               1.3    70.66   10.7    52.6
## Georgia               2.0    68.54   13.9    40.6
## Hawaii                1.9    73.60    6.2    61.9
## Idaho                 0.6    71.87    5.3    59.5
## Illinois              0.9    70.14   10.3    52.6
## Indiana               0.7    70.88    7.1    52.9
## Iowa                  0.5    72.56    2.3    59.0
## Kansas                0.6    72.58    4.5    59.9
## Kentucky              1.6    70.10   10.6    38.5
## Louisiana             2.8    68.76   13.2    42.2
## Maine                 0.7    70.39    2.7    54.7
## Maryland              0.9    70.22    8.5    52.3
## Massachusetts         1.1    71.83    3.3    58.5
## Michigan              0.9    70.63   11.1    52.8
## Minnesota             0.6    72.96    2.3    57.6
## Mississippi           2.4    68.09   12.5    41.0
## Missouri              0.8    70.69    9.3    48.8
## Montana               0.6    70.56    5.0    59.2
## Nebraska              0.6    72.60    2.9    59.3
## Nevada                0.5    69.03   11.5    65.2
## New Hampshire         0.7    71.23    3.3    57.6
## New Jersey            1.1    70.93    5.2    52.5
## New Mexico            2.2    70.32    9.7    55.2
## New York              1.4    70.55   10.9    52.7
## North Carolina        1.8    69.21   11.1    38.5
## North Dakota          0.8    72.78    1.4    50.3
## Ohio                  0.8    70.82    7.4    53.2
## Oklahoma              1.1    71.42    6.4    51.6
## Oregon                0.6    72.13    4.2    60.0
## Pennsylvania          1.0    70.43    6.1    50.2
## Rhode Island          1.3    71.90    2.4    46.4
## South Carolina        2.3    67.96   11.6    37.8
## South Dakota          0.5    72.08    1.7    53.3
## Tennessee             1.7    70.11   11.0    41.8
## Texas                 2.2    70.90   12.2    47.4
## Utah                  0.6    72.90    4.5    67.3
## Vermont               0.6    71.64    5.5    57.1
## Virginia              1.4    70.08    9.5    47.8
## Washington            0.6    71.72    4.3    63.5
## West Virginia         1.4    69.48    6.7    41.6
## Wisconsin             0.7    72.48    3.0    54.5
## Wyoming               0.6    70.29    6.9    62.9

Penggunaan Arrange

Mengurutkan negara bagian dengan Income tertinggi

df %>% arrange(desc(Income))
##                Population Income Illiteracy Life Exp Murder HS Grad Frost
## Alaska                365   6315        1.5    69.31   11.3    66.7   152
## Connecticut          3100   5348        1.1    72.48    3.1    56.0   139
## Maryland             4122   5299        0.9    70.22    8.5    52.3   101
## New Jersey           7333   5237        1.1    70.93    5.2    52.5   115
## Nevada                590   5149        0.5    69.03   11.5    65.2   188
## California          21198   5114        1.1    71.71   10.3    62.6    20
## Illinois            11197   5107        0.9    70.14   10.3    52.6   127
## North Dakota          637   5087        0.8    72.78    1.4    50.3   186
## Hawaii                868   4963        1.9    73.60    6.2    61.9     0
## New York            18076   4903        1.4    70.55   10.9    52.7    82
## Colorado             2541   4884        0.7    72.06    6.8    63.9   166
## Washington           3559   4864        0.6    71.72    4.3    63.5    32
## Florida              8277   4815        1.3    70.66   10.7    52.6    11
## Delaware              579   4809        0.9    70.06    6.2    54.6   103
## Massachusetts        5814   4755        1.1    71.83    3.3    58.5   103
## Michigan             9111   4751        0.9    70.63   11.1    52.8   125
## Virginia             4981   4701        1.4    70.08    9.5    47.8    85
## Minnesota            3921   4675        0.6    72.96    2.3    57.6   160
## Kansas               2280   4669        0.6    72.58    4.5    59.9   114
## Oregon               2284   4660        0.6    72.13    4.2    60.0    44
## Iowa                 2861   4628        0.5    72.56    2.3    59.0   140
## Wyoming               376   4566        0.6    70.29    6.9    62.9   173
## Ohio                10735   4561        0.8    70.82    7.4    53.2   124
## Rhode Island          931   4558        1.3    71.90    2.4    46.4   127
## Arizona              2212   4530        1.8    70.55    7.8    58.1    15
## Nebraska             1544   4508        0.6    72.60    2.9    59.3   139
## Wisconsin            4589   4468        0.7    72.48    3.0    54.5   149
## Indiana              5313   4458        0.7    70.88    7.1    52.9   122
## Pennsylvania        11860   4449        1.0    70.43    6.1    50.2   126
## Montana               746   4347        0.6    70.56    5.0    59.2   155
## New Hampshire         812   4281        0.7    71.23    3.3    57.6   174
## Missouri             4767   4254        0.8    70.69    9.3    48.8   108
## Texas               12237   4188        2.2    70.90   12.2    47.4    35
## South Dakota          681   4167        0.5    72.08    1.7    53.3   172
## Idaho                 813   4119        0.6    71.87    5.3    59.5   126
## Georgia              4931   4091        2.0    68.54   13.9    40.6    60
## Utah                 1203   4022        0.6    72.90    4.5    67.3   137
## Oklahoma             2715   3983        1.1    71.42    6.4    51.6    82
## Vermont               472   3907        0.6    71.64    5.5    57.1   168
## North Carolina       5441   3875        1.8    69.21   11.1    38.5    80
## Tennessee            4173   3821        1.7    70.11   11.0    41.8    70
## Kentucky             3387   3712        1.6    70.10   10.6    38.5    95
## Maine                1058   3694        0.7    70.39    2.7    54.7   161
## South Carolina       2816   3635        2.3    67.96   11.6    37.8    65
## Alabama              3615   3624        2.1    69.05   15.1    41.3    20
## West Virginia        1799   3617        1.4    69.48    6.7    41.6   100
## New Mexico           1144   3601        2.2    70.32    9.7    55.2   120
## Louisiana            3806   3545        2.8    68.76   13.2    42.2    12
## Arkansas             2110   3378        1.9    70.66   10.1    39.9    65
## Mississippi          2341   3098        2.4    68.09   12.5    41.0    50
##                  Area
## Alaska         566432
## Connecticut      4862
## Maryland         9891
## New Jersey       7521
## Nevada         109889
## California     156361
## Illinois        55748
## North Dakota    69273
## Hawaii           6425
## New York        47831
## Colorado       103766
## Washington      66570
## Florida         54090
## Delaware         1982
## Massachusetts    7826
## Michigan        56817
## Virginia        39780
## Minnesota       79289
## Kansas          81787
## Oregon          96184
## Iowa            55941
## Wyoming         97203
## Ohio            40975
## Rhode Island     1049
## Arizona        113417
## Nebraska        76483
## Wisconsin       54464
## Indiana         36097
## Pennsylvania    44966
## Montana        145587
## New Hampshire    9027
## Missouri        68995
## Texas          262134
## South Dakota    75955
## Idaho           82677
## Georgia         58073
## Utah            82096
## Oklahoma        68782
## Vermont          9267
## North Carolina  48798
## Tennessee       41328
## Kentucky        39650
## Maine           30920
## South Carolina  30225
## Alabama         50708
## West Virginia   24070
## New Mexico     121412
## Louisiana       44930
## Arkansas        51945
## Mississippi     47296

Mengurutkan negara bagian dengan High School Graduation tertinggi

df %>% arrange(desc(`HS Grad`))
##                Population Income Illiteracy Life Exp Murder HS Grad Frost
## Utah                 1203   4022        0.6    72.90    4.5    67.3   137
## Alaska                365   6315        1.5    69.31   11.3    66.7   152
## Nevada                590   5149        0.5    69.03   11.5    65.2   188
## Colorado             2541   4884        0.7    72.06    6.8    63.9   166
## Washington           3559   4864        0.6    71.72    4.3    63.5    32
## Wyoming               376   4566        0.6    70.29    6.9    62.9   173
## California          21198   5114        1.1    71.71   10.3    62.6    20
## Hawaii                868   4963        1.9    73.60    6.2    61.9     0
## Oregon               2284   4660        0.6    72.13    4.2    60.0    44
## Kansas               2280   4669        0.6    72.58    4.5    59.9   114
## Idaho                 813   4119        0.6    71.87    5.3    59.5   126
## Nebraska             1544   4508        0.6    72.60    2.9    59.3   139
## Montana               746   4347        0.6    70.56    5.0    59.2   155
## Iowa                 2861   4628        0.5    72.56    2.3    59.0   140
## Massachusetts        5814   4755        1.1    71.83    3.3    58.5   103
## Arizona              2212   4530        1.8    70.55    7.8    58.1    15
## Minnesota            3921   4675        0.6    72.96    2.3    57.6   160
## New Hampshire         812   4281        0.7    71.23    3.3    57.6   174
## Vermont               472   3907        0.6    71.64    5.5    57.1   168
## Connecticut          3100   5348        1.1    72.48    3.1    56.0   139
## New Mexico           1144   3601        2.2    70.32    9.7    55.2   120
## Maine                1058   3694        0.7    70.39    2.7    54.7   161
## Delaware              579   4809        0.9    70.06    6.2    54.6   103
## Wisconsin            4589   4468        0.7    72.48    3.0    54.5   149
## South Dakota          681   4167        0.5    72.08    1.7    53.3   172
## Ohio                10735   4561        0.8    70.82    7.4    53.2   124
## Indiana              5313   4458        0.7    70.88    7.1    52.9   122
## Michigan             9111   4751        0.9    70.63   11.1    52.8   125
## New York            18076   4903        1.4    70.55   10.9    52.7    82
## Florida              8277   4815        1.3    70.66   10.7    52.6    11
## Illinois            11197   5107        0.9    70.14   10.3    52.6   127
## New Jersey           7333   5237        1.1    70.93    5.2    52.5   115
## Maryland             4122   5299        0.9    70.22    8.5    52.3   101
## Oklahoma             2715   3983        1.1    71.42    6.4    51.6    82
## North Dakota          637   5087        0.8    72.78    1.4    50.3   186
## Pennsylvania        11860   4449        1.0    70.43    6.1    50.2   126
## Missouri             4767   4254        0.8    70.69    9.3    48.8   108
## Virginia             4981   4701        1.4    70.08    9.5    47.8    85
## Texas               12237   4188        2.2    70.90   12.2    47.4    35
## Rhode Island          931   4558        1.3    71.90    2.4    46.4   127
## Louisiana            3806   3545        2.8    68.76   13.2    42.2    12
## Tennessee            4173   3821        1.7    70.11   11.0    41.8    70
## West Virginia        1799   3617        1.4    69.48    6.7    41.6   100
## Alabama              3615   3624        2.1    69.05   15.1    41.3    20
## Mississippi          2341   3098        2.4    68.09   12.5    41.0    50
## Georgia              4931   4091        2.0    68.54   13.9    40.6    60
## Arkansas             2110   3378        1.9    70.66   10.1    39.9    65
## Kentucky             3387   3712        1.6    70.10   10.6    38.5    95
## North Carolina       5441   3875        1.8    69.21   11.1    38.5    80
## South Carolina       2816   3635        2.3    67.96   11.6    37.8    65
##                  Area
## Utah            82096
## Alaska         566432
## Nevada         109889
## Colorado       103766
## Washington      66570
## Wyoming         97203
## California     156361
## Hawaii           6425
## Oregon          96184
## Kansas          81787
## Idaho           82677
## Nebraska        76483
## Montana        145587
## Iowa            55941
## Massachusetts    7826
## Arizona        113417
## Minnesota       79289
## New Hampshire    9027
## Vermont          9267
## Connecticut      4862
## New Mexico     121412
## Maine           30920
## Delaware         1982
## Wisconsin       54464
## South Dakota    75955
## Ohio            40975
## Indiana         36097
## Michigan        56817
## New York        47831
## Florida         54090
## Illinois        55748
## New Jersey       7521
## Maryland         9891
## Oklahoma        68782
## North Dakota    69273
## Pennsylvania    44966
## Missouri        68995
## Virginia        39780
## Texas          262134
## Rhode Island     1049
## Louisiana       44930
## Tennessee       41328
## West Virginia   24070
## Alabama         50708
## Mississippi     47296
## Georgia         58073
## Arkansas        51945
## Kentucky        39650
## North Carolina  48798
## South Carolina  30225

Mengurutkan negara bagian dengan Murder terendah

df %>% arrange(Murder)
##                Population Income Illiteracy Life Exp Murder HS Grad Frost
## North Dakota          637   5087        0.8    72.78    1.4    50.3   186
## South Dakota          681   4167        0.5    72.08    1.7    53.3   172
## Iowa                 2861   4628        0.5    72.56    2.3    59.0   140
## Minnesota            3921   4675        0.6    72.96    2.3    57.6   160
## Rhode Island          931   4558        1.3    71.90    2.4    46.4   127
## Maine                1058   3694        0.7    70.39    2.7    54.7   161
## Nebraska             1544   4508        0.6    72.60    2.9    59.3   139
## Wisconsin            4589   4468        0.7    72.48    3.0    54.5   149
## Connecticut          3100   5348        1.1    72.48    3.1    56.0   139
## Massachusetts        5814   4755        1.1    71.83    3.3    58.5   103
## New Hampshire         812   4281        0.7    71.23    3.3    57.6   174
## Oregon               2284   4660        0.6    72.13    4.2    60.0    44
## Washington           3559   4864        0.6    71.72    4.3    63.5    32
## Kansas               2280   4669        0.6    72.58    4.5    59.9   114
## Utah                 1203   4022        0.6    72.90    4.5    67.3   137
## Montana               746   4347        0.6    70.56    5.0    59.2   155
## New Jersey           7333   5237        1.1    70.93    5.2    52.5   115
## Idaho                 813   4119        0.6    71.87    5.3    59.5   126
## Vermont               472   3907        0.6    71.64    5.5    57.1   168
## Pennsylvania        11860   4449        1.0    70.43    6.1    50.2   126
## Delaware              579   4809        0.9    70.06    6.2    54.6   103
## Hawaii                868   4963        1.9    73.60    6.2    61.9     0
## Oklahoma             2715   3983        1.1    71.42    6.4    51.6    82
## West Virginia        1799   3617        1.4    69.48    6.7    41.6   100
## Colorado             2541   4884        0.7    72.06    6.8    63.9   166
## Wyoming               376   4566        0.6    70.29    6.9    62.9   173
## Indiana              5313   4458        0.7    70.88    7.1    52.9   122
## Ohio                10735   4561        0.8    70.82    7.4    53.2   124
## Arizona              2212   4530        1.8    70.55    7.8    58.1    15
## Maryland             4122   5299        0.9    70.22    8.5    52.3   101
## Missouri             4767   4254        0.8    70.69    9.3    48.8   108
## Virginia             4981   4701        1.4    70.08    9.5    47.8    85
## New Mexico           1144   3601        2.2    70.32    9.7    55.2   120
## Arkansas             2110   3378        1.9    70.66   10.1    39.9    65
## California          21198   5114        1.1    71.71   10.3    62.6    20
## Illinois            11197   5107        0.9    70.14   10.3    52.6   127
## Kentucky             3387   3712        1.6    70.10   10.6    38.5    95
## Florida              8277   4815        1.3    70.66   10.7    52.6    11
## New York            18076   4903        1.4    70.55   10.9    52.7    82
## Tennessee            4173   3821        1.7    70.11   11.0    41.8    70
## Michigan             9111   4751        0.9    70.63   11.1    52.8   125
## North Carolina       5441   3875        1.8    69.21   11.1    38.5    80
## Alaska                365   6315        1.5    69.31   11.3    66.7   152
## Nevada                590   5149        0.5    69.03   11.5    65.2   188
## South Carolina       2816   3635        2.3    67.96   11.6    37.8    65
## Texas               12237   4188        2.2    70.90   12.2    47.4    35
## Mississippi          2341   3098        2.4    68.09   12.5    41.0    50
## Louisiana            3806   3545        2.8    68.76   13.2    42.2    12
## Georgia              4931   4091        2.0    68.54   13.9    40.6    60
## Alabama              3615   3624        2.1    69.05   15.1    41.3    20
##                  Area
## North Dakota    69273
## South Dakota    75955
## Iowa            55941
## Minnesota       79289
## Rhode Island     1049
## Maine           30920
## Nebraska        76483
## Wisconsin       54464
## Connecticut      4862
## Massachusetts    7826
## New Hampshire    9027
## Oregon          96184
## Washington      66570
## Kansas          81787
## Utah            82096
## Montana        145587
## New Jersey       7521
## Idaho           82677
## Vermont          9267
## Pennsylvania    44966
## Delaware         1982
## Hawaii           6425
## Oklahoma        68782
## West Virginia   24070
## Colorado       103766
## Wyoming         97203
## Indiana         36097
## Ohio            40975
## Arizona        113417
## Maryland         9891
## Missouri        68995
## Virginia        39780
## New Mexico     121412
## Arkansas        51945
## California     156361
## Illinois        55748
## Kentucky        39650
## Florida         54090
## New York        47831
## Tennessee       41328
## Michigan        56817
## North Carolina  48798
## Alaska         566432
## Nevada         109889
## South Carolina  30225
## Texas          262134
## Mississippi     47296
## Louisiana       44930
## Georgia         58073
## Alabama         50708

Penggunaan Summarise

Menghitung Rata-Rata, Tertinggi, dan Terendah Income

df %>% summarize (mean.Income=mean(Income), max.Income = max(Income), min.Income=min(Income))
##   mean.Income max.Income min.Income
## 1      4435.8       6315       3098

Penggunaan Mutate

Menghitung Kepadatan negara bagian

mutate(df, Kepadatan = Population/Area)
##                Population Income Illiteracy Life Exp Murder HS Grad Frost
## Alabama              3615   3624        2.1    69.05   15.1    41.3    20
## Alaska                365   6315        1.5    69.31   11.3    66.7   152
## Arizona              2212   4530        1.8    70.55    7.8    58.1    15
## Arkansas             2110   3378        1.9    70.66   10.1    39.9    65
## California          21198   5114        1.1    71.71   10.3    62.6    20
## Colorado             2541   4884        0.7    72.06    6.8    63.9   166
## Connecticut          3100   5348        1.1    72.48    3.1    56.0   139
## Delaware              579   4809        0.9    70.06    6.2    54.6   103
## Florida              8277   4815        1.3    70.66   10.7    52.6    11
## Georgia              4931   4091        2.0    68.54   13.9    40.6    60
## Hawaii                868   4963        1.9    73.60    6.2    61.9     0
## Idaho                 813   4119        0.6    71.87    5.3    59.5   126
## Illinois            11197   5107        0.9    70.14   10.3    52.6   127
## Indiana              5313   4458        0.7    70.88    7.1    52.9   122
## Iowa                 2861   4628        0.5    72.56    2.3    59.0   140
## Kansas               2280   4669        0.6    72.58    4.5    59.9   114
## Kentucky             3387   3712        1.6    70.10   10.6    38.5    95
## Louisiana            3806   3545        2.8    68.76   13.2    42.2    12
## Maine                1058   3694        0.7    70.39    2.7    54.7   161
## Maryland             4122   5299        0.9    70.22    8.5    52.3   101
## Massachusetts        5814   4755        1.1    71.83    3.3    58.5   103
## Michigan             9111   4751        0.9    70.63   11.1    52.8   125
## Minnesota            3921   4675        0.6    72.96    2.3    57.6   160
## Mississippi          2341   3098        2.4    68.09   12.5    41.0    50
## Missouri             4767   4254        0.8    70.69    9.3    48.8   108
## Montana               746   4347        0.6    70.56    5.0    59.2   155
## Nebraska             1544   4508        0.6    72.60    2.9    59.3   139
## Nevada                590   5149        0.5    69.03   11.5    65.2   188
## New Hampshire         812   4281        0.7    71.23    3.3    57.6   174
## New Jersey           7333   5237        1.1    70.93    5.2    52.5   115
## New Mexico           1144   3601        2.2    70.32    9.7    55.2   120
## New York            18076   4903        1.4    70.55   10.9    52.7    82
## North Carolina       5441   3875        1.8    69.21   11.1    38.5    80
## North Dakota          637   5087        0.8    72.78    1.4    50.3   186
## Ohio                10735   4561        0.8    70.82    7.4    53.2   124
## Oklahoma             2715   3983        1.1    71.42    6.4    51.6    82
## Oregon               2284   4660        0.6    72.13    4.2    60.0    44
## Pennsylvania        11860   4449        1.0    70.43    6.1    50.2   126
## Rhode Island          931   4558        1.3    71.90    2.4    46.4   127
## South Carolina       2816   3635        2.3    67.96   11.6    37.8    65
## South Dakota          681   4167        0.5    72.08    1.7    53.3   172
## Tennessee            4173   3821        1.7    70.11   11.0    41.8    70
## Texas               12237   4188        2.2    70.90   12.2    47.4    35
## Utah                 1203   4022        0.6    72.90    4.5    67.3   137
## Vermont               472   3907        0.6    71.64    5.5    57.1   168
## Virginia             4981   4701        1.4    70.08    9.5    47.8    85
## Washington           3559   4864        0.6    71.72    4.3    63.5    32
## West Virginia        1799   3617        1.4    69.48    6.7    41.6   100
## Wisconsin            4589   4468        0.7    72.48    3.0    54.5   149
## Wyoming               376   4566        0.6    70.29    6.9    62.9   173
##                  Area    Kepadatan
## Alabama         50708 0.0712905261
## Alaska         566432 0.0006443845
## Arizona        113417 0.0195032491
## Arkansas        51945 0.0406198864
## California     156361 0.1355708904
## Colorado       103766 0.0244877898
## Connecticut      4862 0.6375976964
## Delaware         1982 0.2921291625
## Florida         54090 0.1530227399
## Georgia         58073 0.0849103714
## Hawaii           6425 0.1350972763
## Idaho           82677 0.0098334482
## Illinois        55748 0.2008502547
## Indiana         36097 0.1471867468
## Iowa            55941 0.0511431687
## Kansas          81787 0.0278772910
## Kentucky        39650 0.0854224464
## Louisiana       44930 0.0847095482
## Maine           30920 0.0342173351
## Maryland         9891 0.4167424932
## Massachusetts    7826 0.7429082545
## Michigan        56817 0.1603569354
## Minnesota       79289 0.0494520047
## Mississippi     47296 0.0494967862
## Missouri        68995 0.0690919632
## Montana        145587 0.0051240839
## Nebraska        76483 0.0201874926
## Nevada         109889 0.0053690542
## New Hampshire    9027 0.0899523651
## New Jersey       7521 0.9750033240
## New Mexico     121412 0.0094224624
## New York        47831 0.3779139052
## North Carolina  48798 0.1115004713
## North Dakota    69273 0.0091955019
## Ohio            40975 0.2619890177
## Oklahoma        68782 0.0394725364
## Oregon          96184 0.0237461532
## Pennsylvania    44966 0.2637548370
## Rhode Island     1049 0.8875119161
## South Carolina  30225 0.0931679074
## South Dakota    75955 0.0089658350
## Tennessee       41328 0.1009727062
## Texas          262134 0.0466822312
## Utah            82096 0.0146535763
## Vermont          9267 0.0509334197
## Virginia        39780 0.1252136752
## Washington      66570 0.0534625207
## West Virginia   24070 0.0747403407
## Wisconsin       54464 0.0842574912
## Wyoming         97203 0.0038681934

Penggunaan 2 fungsi sekaligus

Melihat negara bagian dari yang terpadat

view1 <- df %>%
  mutate(df, Kepadatan = Population/Area) %>%
  arrange(desc(Kepadatan))
head(view1)
##               Population Income Illiteracy Life Exp Murder HS Grad Frost  Area
## New Jersey          7333   5237        1.1    70.93    5.2    52.5   115  7521
## Rhode Island         931   4558        1.3    71.90    2.4    46.4   127  1049
## Massachusetts       5814   4755        1.1    71.83    3.3    58.5   103  7826
## Connecticut         3100   5348        1.1    72.48    3.1    56.0   139  4862
## Maryland            4122   5299        0.9    70.22    8.5    52.3   101  9891
## New York           18076   4903        1.4    70.55   10.9    52.7    82 47831
##               Kepadatan
## New Jersey    0.9750033
## Rhode Island  0.8875119
## Massachusetts 0.7429083
## Connecticut   0.6375977
## Maryland      0.4167425
## New York      0.3779139

Melihat negara bagian dengan Income di atas rata-rata dari yang tertinggi

view2 <- df %>%
  filter(Income>mean(Income)) %>%
  arrange(desc(Income))
head(view2)
##             Population Income Illiteracy Life Exp Murder HS Grad Frost   Area
## Alaska             365   6315        1.5    69.31   11.3    66.7   152 566432
## Connecticut       3100   5348        1.1    72.48    3.1    56.0   139   4862
## Maryland          4122   5299        0.9    70.22    8.5    52.3   101   9891
## New Jersey        7333   5237        1.1    70.93    5.2    52.5   115   7521
## Nevada             590   5149        0.5    69.03   11.5    65.2   188 109889
## California       21198   5114        1.1    71.71   10.3    62.6    20 156361