Tipo de pesquisa em Data Frames no R

Importando os dados

# Neste comando vamos atribuir à variável dt o arquivo csv do site especificado
dt = read.csv("http://rfs.kvasaheim.com/data/gdp.csv")
attach(dt)

Analizando os dados

#Dimensão dos dados (linhas e colunas)
dim(dt)
## [1] 179   9
#Primeiras linhas dos dados
head(dt)
##   scode2       state        region democracy      govt       OPEC hig
## 1     af Afghanistan       Islamic       -10 Autocracy Non-Member 1.3
## 2     al     Albania       Western         7 Democracy Non-Member 3.2
## 3     dz     Algeria       Islamic         2  Anocracy     Member 2.8
## 4     ao      Angola        Africa        -2  Anocracy     Member 1.9
## 5     ar   Argentina Latin America         8 Democracy Non-Member 2.9
## 6     am     Armenia         Other         5  Anocracy Non-Member 2.7
##   corruption gdpcap
## 1        8.7    800
## 2        6.8   6300
## 3        7.2   7000
## 4        8.1   8900
## 5        7.1  13800
## 6        7.3   5900
#Últimas linhas dos dados
tail(dt)
##     scode2      state        region democracy      govt       OPEC hig
## 174     uz Uzbekistan       Islamic        -9 Autocracy Non-Member 1.7
## 175     vu    Vanuatu         Other        NA  Anocracy Non-Member 3.2
## 176     ve  Venezuela Latin America         6 Democracy     Member 1.9
## 177     vn    Vietnam       Eastern        -7 Autocracy Non-Member 2.7
## 178     ye      Yemen       Islamic        -2  Anocracy Non-Member 2.1
## 179     zm     Zambia        Africa         5  Anocracy Non-Member 3.0
##     corruption gdpcap
## 174        8.3   2800
## 175        6.8   4800
## 176        8.1  13100
## 177        7.3   2900
## 178        7.9   2500
## 179        7.0   1500
# Resumo dos dados
summary(dt)
##     scode2             state              region            democracy      
##  Length:179         Length:179         Length:179         Min.   :-10.000  
##  Class :character   Class :character   Class :character   1st Qu.: -2.000  
##  Mode  :character   Mode  :character   Mode  :character   Median :  7.000  
##                                                           Mean   :  3.632  
##                                                           3rd Qu.: 10.000  
##                                                           Max.   : 10.000  
##                                                           NA's   :8        
##      govt               OPEC                hig          corruption   
##  Length:179         Length:179         Min.   :1.100   Min.   :0.600  
##  Class :character   Class :character   1st Qu.:2.500   1st Qu.:4.850  
##  Mode  :character   Mode  :character   Median :3.300   Median :6.700  
##                                        Mean   :4.041   Mean   :5.959  
##                                        3rd Qu.:5.150   3rd Qu.:7.500  
##                                        Max.   :9.400   Max.   :8.900  
##                                                                       
##      gdpcap      
##  Min.   :   300  
##  1st Qu.:  2400  
##  Median :  8000  
##  Mean   : 13871  
##  3rd Qu.: 18650  
##  Max.   :121700  
## 
# Informa que tipo de dados são estes
class(dt)
## [1] "data.frame"

Fazendo a pesquisa

# ordenar de forma reversa a coluna state
dt[rev(order(state)),]
##     scode2                            state        region democracy      govt
## 179     zm                           Zambia        Africa         5  Anocracy
## 178     ye                            Yemen       Islamic        -2  Anocracy
## 177     vn                          Vietnam       Eastern        -7 Autocracy
## 176     ve                        Venezuela Latin America         6 Democracy
## 175     vu                          Vanuatu         Other        NA  Anocracy
## 174     uz                       Uzbekistan       Islamic        -9 Autocracy
## 173     uy                          Uruguay Latin America        10 Democracy
## 172     us                    United States       Western        10 Democracy
## 171     uk                   United Kingdom       Western        10 Democracy
## 170     ae             United Arab Emirates       Islamic       -10 Autocracy
## 169     ua                          Ukraine       Western         6 Democracy
## 168     ug                           Uganda        Africa        -4  Anocracy
## 167     tm                     Turkmenistan       Islamic        -9 Autocracy
## 166     tr                           Turkey       Islamic         7 Democracy
## 165     tn                          Tunisia       Islamic        -4  Anocracy
## 164     tt              Trinidad and Tobago Latin America        10 Democracy
## 163     to                            Tonga         Other        NA Autocracy
## 162     tg                             Togo        Africa        -2  Anocracy
## 161     tl                      Timor-Leste         Other         6 Democracy
## 160     th                         Thailand       Eastern         9 Democracy
## 159     tz                         Tanzania        Africa         2  Anocracy
## 158     tj                       Tajikistan       Islamic        -3  Anocracy
## 157     tw                           Taiwan       Eastern        10 Democracy
## 156     sy                            Syria       Islamic        -7 Autocracy
## 155     ch                      Switzerland       Western        10 Democracy
## 154     se                           Sweden       Western        10 Democracy
## 153     sz                        Swaziland        Africa        -9 Autocracy
## 152     sr                         Suriname        Africa        NA Democracy
## 151     sd                            Sudan       Islamic        -6 Autocracy
## 150     lk                        Sri Lanka       Eastern         5  Anocracy
## 149     es                            Spain       Western        10 Democracy
## 148     kr                      South Korea       Eastern         8 Democracy
## 147     za                     South Africa        Africa         9 Democracy
## 146     so                          Somalia       Islamic         0  Anocracy
## 145     sb                  Solomon Islands         Other         8 Democracy
## 144     si                         Slovenia       Western        10 Democracy
## 143     sk                         Slovakia       Western         9 Democracy
## 142     sg                        Singapore       Western        -2  Anocracy
## 141     sl                     Sierra Leone        Africa         5  Anocracy
## 140     sc                       Seychelles        Africa        10 Democracy
## 139     rs                           Serbia       Western         6 Democracy
## 138     sn                          Senegal        Africa         8 Democracy
## 137     sa                     Saudi Arabia       Islamic       -10 Autocracy
## 136     st                         Sao Tome        Africa        NA Democracy
## 135     ws                            Samoa         Other        10 Democracy
## 134     vc Saint Vincent and the Grenadines         Other        10 Democracy
## 133     lc                      Saint Lucia         Other        10 Democracy
## 132     rw                           Rwanda        Africa        -3  Anocracy
## 131     ru                           Russia       Western         7 Democracy
## 130     ro                          Romania       Western         9 Democracy
## 129     cg            Republic of the Congo        Africa        -8 Autocracy
## 128     qa                            Qatar       Islamic       -10 Autocracy
## 127     pr                      Puerto Rico Latin America        10 Democracy
## 126     pt                         Portugal       Western        10 Democracy
## 125     pl                           Poland       Western        10 Democracy
## 124     ph                      Philippines       Western         8 Democracy
## 123     pe                             Peru Latin America         9 Democracy
## 122     py                         Paraguay Latin America         8 Democracy
## 121     pg                 Papua New Guinea         Other        10 Democracy
## 120     pa                           Panama Latin America         9 Democracy
## 119     pk                         Pakistan       Islamic        -5  Anocracy
## 118     om                             Oman       Islamic        -8 Autocracy
## 117     no                           Norway       Western        10 Democracy
## 116     ng                          Nigeria        Africa         4  Anocracy
## 115     ne                            Niger        Africa         4  Anocracy
## 114     ni                        Nicaragua Latin America         8 Democracy
## 113     nz                      New Zealand       Western        10 Democracy
## 112     nl                      Netherlands       Western        10 Democracy
## 111     np                            Nepal       Eastern        -6 Autocracy
## 110     na                          Namibia        Africa         6 Democracy
## 109     mm                          Myanmar       Eastern        -8 Autocracy
## 108     mz                       Mozambique        Africa         6 Democracy
## 107     ma                          Morocco       Islamic        -6 Autocracy
## 106     me                       Montenegro       Western         8 Democracy
## 105     mn                         Mongolia       Eastern        10 Democracy
## 104     md                          Moldova         Other         8 Democracy
## 103     mx                           Mexico Latin America         8 Democracy
## 102     mu                        Mauritius        Africa        10 Democracy
## 101     mr                       Mauritania        Africa        -6 Autocracy
## 100     mt                            Malta       Western        10 Democracy
## 99      ml                             Mali        Africa         6 Democracy
## 98      mv                         Maldives        Africa        10 Democracy
## 97      my                         Malaysia       Islamic         3  Anocracy
## 96      mw                           Malawi        Africa         6 Democracy
## 95      mg                       Madagascar        Africa         7 Democracy
## 94      mk                        Macedonia       Western         9 Democracy
## 93      mo                            Macau       Eastern        NA  Anocracy
## 92      lu                       Luxembourg       Western        10 Democracy
## 91      lt                        Lithuania       Western        10 Democracy
## 90      ly                            Libya       Islamic        -7 Autocracy
## 89      lr                          Liberia        Africa         0  Anocracy
## 88      ls                          Lesotho        Africa         8 Democracy
## 87      lb                          Lebanon       Islamic         5  Anocracy
## 86      lv                           Latvia       Western         8 Democracy
## 85      la                             Laos       Eastern        -7 Autocracy
## 84      kg                       Kyrgyzstan       Islamic        -3  Anocracy
## 83      kw                           Kuwait       Islamic        -7 Autocracy
## 82      ki                         Kiribati         Other        NA Democracy
## 81      ke                            Kenya        Africa         8 Democracy
## 80      kz                       Kazakhstan       Islamic        -6 Autocracy
## 79      jo                           Jordan       Islamic        -2  Anocracy
## 78      jp                            Japan       Eastern        10 Democracy
## 77      jm                          Jamaica       Western         9 Democracy
## 76      ci                      Ivory Coast        Africa         0  Anocracy
## 75      it                            Italy       Western        10 Democracy
## 74      il                           Israel       Western        10 Democracy
## 73      ie                          Ireland       Western        10 Democracy
## 72      iq                             Iraq       Islamic         0  Anocracy
## 71      ir                             Iran       Islamic        -6 Autocracy
## 70      id                        Indonesia       Islamic         8 Democracy
## 69      in                            India       Eastern         9 Democracy
## 68      is                          Iceland       Western        10 Democracy
## 67      hu                          Hungary       Western        10 Democracy
## 66      hk                        Hong Kong       Eastern        NA  Anocracy
## 65      hn                         Honduras Latin America         7 Democracy
## 64      ht                            Haiti Latin America        -2  Anocracy
## 63      gy                           Guyana Latin America         6 Democracy
## 62      gw                    Guinea-Bissau        Africa        -1  Anocracy
## 61      gn                           Guinea        Africa        -1  Anocracy
## 60      gt                        Guatemala Latin America         8 Democracy
## 59      gr                           Greece       Western        10 Democracy
## 58      gh                            Ghana        Africa         8 Democracy
## 57      de                          Germany       Western        10 Democracy
## 56      ge                          Georgia         Other         7 Democracy
## 55      gm                           Gambia        Africa        -5  Anocracy
## 54      ga                            Gabon        Africa        -4  Anocracy
## 53      fr                           France       Western         9 Democracy
## 52      fi                          Finland       Western        10 Democracy
## 51      et                         Ethiopia        Africa         1  Anocracy
## 50      ee                          Estonia       Western         6 Democracy
## 49      er                          Eritrea       Islamic        -7 Autocracy
## 48      gq                Equatorial Guinea        Africa        -5  Anocracy
## 47      sv                      El Salvador Latin America         7 Democracy
## 46      eg                            Egypt       Islamic        -6 Autocracy
## 45      ec                          Ecuador Latin America         6 Democracy
## 44      do               Dominican Republic Latin America         8 Democracy
## 43      dm                         Dominica       Western        10 Democracy
## 42      dj                         Djibouti        Africa         2  Anocracy
## 41      dk                          Denmark       Western        10 Democracy
## 40      cd Democratic Republic of the Congo        Africa        -8 Autocracy
## 39      cz                   Czech Republic       Western        10 Democracy
## 38      cy                           Cyprus       Western        10 Democracy
## 37      cu                             Cuba Latin America        -7 Autocracy
## 36      hr                          Croatia       Western         7 Democracy
## 35      cr                       Costa Rica Latin America        10 Democracy
## 34      km                          Comoros        Africa         6 Democracy
## 33      co                         Colombia Latin America         7 Democracy
## 32      cn                            China       Eastern        -7 Autocracy
## 31      cl                            Chile Latin America         9 Democracy
## 30      td                             Chad        Africa        -2  Anocracy
## 29      cf         Central African Republic        Africa        -1  Anocracy
## 28      cv                       Cape Verde        Africa        NA Democracy
## 27      ca                           Canada       Western        10 Democracy
## 26      cm                         Cameroon        Africa        -4  Anocracy
## 25      kh                         Cambodia       Eastern         2  Anocracy
## 24      bi                          Burundi        Africa         0  Anocracy
## 23      bf                     Burkina Faso        Africa         0  Anocracy
## 22      bg                         Bulgaria       Western         9 Democracy
## 21      bn                           Brunei       Islamic       -10 Autocracy
## 20      br                           Brazil Latin America         8 Democracy
## 19      bw                         Botswana        Africa         9 Democracy
## 18      ba           Bosnia and Herzegovina       Western         3  Anocracy
## 17      bo                          Bolivia Latin America         8 Democracy
## 16      bt                           Bhutan       Eastern        -8 Autocracy
## 15      bj                            Benin        Africa         6 Democracy
## 14      be                          Belgium       Western        10 Democracy
## 13      by                          Belarus       Western        -7 Autocracy
## 12      bb                         Barbados       Western        10 Democracy
## 11      bd                       Bangladesh       Islamic         6 Democracy
## 10      bh                          Bahrain       Islamic        -7 Autocracy
## 9       az                       Azerbaijan       Islamic        -7 Autocracy
## 8       at                          Austria       Western        10 Democracy
## 7       au                        Australia       Western        10 Democracy
## 6       am                          Armenia         Other         5  Anocracy
## 5       ar                        Argentina Latin America         8 Democracy
## 4       ao                           Angola        Africa        -2  Anocracy
## 3       dz                          Algeria       Islamic         2  Anocracy
## 2       al                          Albania       Western         7 Democracy
## 1       af                      Afghanistan       Islamic       -10 Autocracy
##           OPEC hig corruption gdpcap
## 179 Non-Member 3.0        7.0   1500
## 178 Non-Member 2.1        7.9   2500
## 177 Non-Member 2.7        7.3   2900
## 176     Member 1.9        8.1  13100
## 175 Non-Member 3.2        6.8   4800
## 174 Non-Member 1.7        8.3   2800
## 173 Non-Member 6.7        3.3  12700
## 172 Non-Member 7.5        2.5  46400
## 171 Non-Member 7.7        2.3  35200
## 170     Member 6.5        3.5  42000
## 169 Non-Member 2.2        7.8   6400
## 168 Non-Member 2.5        7.5   1300
## 167 Non-Member 1.8        8.2   6900
## 166 Non-Member 4.4        5.6  11200
## 165 Non-Member 4.2        5.8   8000
## 164 Non-Member 3.6        6.4  23100
## 163 Non-Member 3.0        7.0   4600
## 162 Non-Member 2.8        7.2    900
## 161 Non-Member 2.2        7.8   2400
## 160 Non-Member 3.4        6.6   8100
## 159 Non-Member 2.6        7.4   1400
## 158 Non-Member 2.0        8.0   1800
## 157 Non-Member 5.6        4.4  29800
## 156 Non-Member 2.6        7.4   4600
## 155 Non-Member 9.0        1.0  41700
## 154 Non-Member 9.2        0.8  36800
## 153 Non-Member 3.6        6.4   4400
## 152 Non-Member 3.7        6.3   9000
## 151 Non-Member 1.5        8.5   2300
## 150 Non-Member 3.1        6.9   4500
## 149 Non-Member 6.1        3.9  33700
## 148 Non-Member 5.5        4.5  28000
## 147 Non-Member 4.7        5.3  10100
## 146 Non-Member 1.1        8.9    600
## 145 Non-Member 2.8        7.2   2600
## 144 Non-Member 6.6        3.4  27900
## 143 Non-Member 4.5        5.5  21200
## 142 Non-Member 9.2        0.8  50300
## 141 Non-Member 2.2        7.8    900
## 140 Non-Member 4.8        5.2  19400
## 139 Non-Member 3.5        6.5  10400
## 138 Non-Member 3.0        7.0   1600
## 137     Member 4.3        5.7  20400
## 136 Non-Member 2.8        7.2   1700
## 135 Non-Member 4.5        5.5   5400
## 134 Non-Member 6.4        3.6  18100
## 133 Non-Member 7.0        3.0  10900
## 132 Non-Member 3.3        6.7    900
## 131 Non-Member 2.2        7.8  15100
## 130 Non-Member 3.8        6.2  11500
## 129 Non-Member 1.9        8.1   4100
## 128     Member 7.0        3.0 121700
## 127 Non-Member 5.8        4.2  17200
## 126 Non-Member 5.8        4.2  21800
## 125 Non-Member 5.0        5.0  17900
## 124 Non-Member 2.4        7.6   3300
## 123 Non-Member 3.7        6.3   8600
## 122 Non-Member 2.1        7.9   4100
## 121 Non-Member 2.1        7.9   2400
## 120 Non-Member 3.4        6.6  11900
## 119 Non-Member 2.4        7.6   2600
## 118 Non-Member 5.5        4.5  23900
## 117 Non-Member 8.6        1.4  58600
## 116     Member 2.5        7.5   2400
## 115 Non-Member 2.9        7.1    700
## 114 Non-Member 2.5        7.5   2800
## 113 Non-Member 9.4        0.6  27300
## 112 Non-Member 8.9        1.1  39200
## 111 Non-Member 2.3        7.7   1200
## 110 Non-Member 4.5        5.5   6400
## 109 Non-Member 1.4        8.6   1100
## 108 Non-Member 2.5        7.5    900
## 107 Non-Member 3.3        6.7   4600
## 106 Non-Member 3.9        6.1   9800
## 105 Non-Member 2.7        7.3   3200
## 104 Non-Member 3.3        6.7   2300
## 103 Non-Member 3.3        6.7  13500
## 102 Non-Member 5.4        4.6  12400
## 101 Non-Member 2.5        7.5   2100
## 100 Non-Member 5.2        4.8  23800
## 99  Non-Member 2.8        7.2   1200
## 98  Non-Member 2.5        7.5   4200
## 97  Non-Member 4.5        5.5  14800
## 96  Non-Member 3.3        6.7    900
## 95  Non-Member 3.0        7.0   1000
## 94  Non-Member 3.8        6.2   9000
## 93  Non-Member 5.3        4.7  33000
## 92  Non-Member 8.2        1.8  78000
## 91  Non-Member 4.9        5.1  15400
## 90      Member 2.5        7.5  15200
## 89  Non-Member 3.1        6.9    500
## 88  Non-Member 3.3        6.7   1700
## 87  Non-Member 2.5        7.5  13100
## 86  Non-Member 4.5        5.5  14500
## 85  Non-Member 2.0        8.0   2100
## 84  Non-Member 1.9        8.1   2100
## 83      Member 4.1        5.9  54100
## 82  Non-Member 2.8        7.2   6100
## 81  Non-Member 2.2        7.8   1600
## 80  Non-Member 2.7        7.3  11800
## 79  Non-Member 5.0        5.0   5300
## 78  Non-Member 7.7        2.3  32600
## 77  Non-Member 3.0        7.0   8200
## 76  Non-Member 2.1        7.9   1700
## 75  Non-Member 4.3        5.7  30300
## 74  Non-Member 6.1        3.9  28400
## 73  Non-Member 8.0        2.0  42200
## 72      Member 1.5        8.5   3600
## 71      Member 1.8        8.2  12900
## 70  Non-Member 2.8        7.2   4000
## 69  Non-Member 3.4        6.6   3100
## 68  Non-Member 8.7        1.3  39600
## 67  Non-Member 5.1        4.9  18600
## 66  Non-Member 8.2        1.8  42700
## 65  Non-Member 2.5        7.5   4200
## 64  Non-Member 1.8        8.2   1300
## 63  Non-Member 2.6        7.4   3800
## 62  Non-Member 1.9        8.1    600
## 61  Non-Member 1.8        8.2   1000
## 60  Non-Member 3.4        6.6   5200
## 59  Non-Member 3.8        6.2  32100
## 58  Non-Member 3.9        6.1   1500
## 57  Non-Member 8.0        2.0  34100
## 56  Non-Member 4.1        5.9   4400
## 55  Non-Member 2.9        7.1   1400
## 54  Non-Member 2.9        7.1  13900
## 53  Non-Member 6.9        3.1  32800
## 52  Non-Member 8.9        1.1  34900
## 51  Non-Member 2.7        7.3    900
## 50  Non-Member 6.6        3.4  18700
## 49  Non-Member 2.6        7.4    700
## 48  Non-Member 1.8        8.2  36600
## 47  Non-Member 3.4        6.6   7100
## 46  Non-Member 2.8        7.2   6000
## 45      Member 2.2        7.8   7400
## 44  Non-Member 3.0        7.0   8300
## 43  Non-Member 5.9        4.1  10200
## 42  Non-Member 2.8        7.2   2800
## 41  Non-Member 9.3        0.7  36000
## 40  Non-Member 1.9        8.1    300
## 39  Non-Member 4.9        5.1  25100
## 38  Non-Member 6.6        3.4  21200
## 37  Non-Member 4.4        5.6   9700
## 36  Non-Member 4.1        5.9  17600
## 35  Non-Member 5.3        4.7  10900
## 34  Non-Member 2.3        7.7   1000
## 33  Non-Member 3.7        6.3   9200
## 32  Non-Member 3.6        6.4   6600
## 31  Non-Member 6.7        3.3  14700
## 30  Non-Member 1.6        8.4   1600
## 29  Non-Member 2.0        8.0    700
## 28  Non-Member 5.1        4.9   3400
## 27  Non-Member 8.7        1.3  38400
## 26  Non-Member 2.2        7.8   2300
## 25  Non-Member 2.0        8.0   1900
## 24  Non-Member 1.8        8.2    300
## 23  Non-Member 3.6        6.4   1200
## 22  Non-Member 3.8        6.2  12600
## 21  Non-Member 5.5        4.5  50100
## 20  Non-Member 3.7        6.3  10200
## 19  Non-Member 5.6        4.4  13100
## 18  Non-Member 3.0        7.0   6300
## 17  Non-Member 2.7        7.3   4600
## 16  Non-Member 5.0        5.0   5400
## 15  Non-Member 2.9        7.1   1500
## 14  Non-Member 7.1        2.9  36600
## 13  Non-Member 2.4        7.6  11600
## 12  Non-Member 7.4        2.6  18500
## 11  Non-Member 2.4        7.6   1600
## 10  Non-Member 5.1        4.9  38400
## 9   Non-Member 2.3        7.7  10400
## 8   Non-Member 7.9        2.1  39400
## 7   Non-Member 8.7        1.3  38800
## 6   Non-Member 2.7        7.3   5900
## 5   Non-Member 2.9        7.1  13800
## 4       Member 1.9        8.1   8900
## 3       Member 2.8        7.2   7000
## 2   Non-Member 3.2        6.8   6300
## 1   Non-Member 1.3        8.7    800
# ordenar a coluna state
dt[order(state),]
##     scode2                            state        region democracy      govt
## 1       af                      Afghanistan       Islamic       -10 Autocracy
## 2       al                          Albania       Western         7 Democracy
## 3       dz                          Algeria       Islamic         2  Anocracy
## 4       ao                           Angola        Africa        -2  Anocracy
## 5       ar                        Argentina Latin America         8 Democracy
## 6       am                          Armenia         Other         5  Anocracy
## 7       au                        Australia       Western        10 Democracy
## 8       at                          Austria       Western        10 Democracy
## 9       az                       Azerbaijan       Islamic        -7 Autocracy
## 10      bh                          Bahrain       Islamic        -7 Autocracy
## 11      bd                       Bangladesh       Islamic         6 Democracy
## 12      bb                         Barbados       Western        10 Democracy
## 13      by                          Belarus       Western        -7 Autocracy
## 14      be                          Belgium       Western        10 Democracy
## 15      bj                            Benin        Africa         6 Democracy
## 16      bt                           Bhutan       Eastern        -8 Autocracy
## 17      bo                          Bolivia Latin America         8 Democracy
## 18      ba           Bosnia and Herzegovina       Western         3  Anocracy
## 19      bw                         Botswana        Africa         9 Democracy
## 20      br                           Brazil Latin America         8 Democracy
## 21      bn                           Brunei       Islamic       -10 Autocracy
## 22      bg                         Bulgaria       Western         9 Democracy
## 23      bf                     Burkina Faso        Africa         0  Anocracy
## 24      bi                          Burundi        Africa         0  Anocracy
## 25      kh                         Cambodia       Eastern         2  Anocracy
## 26      cm                         Cameroon        Africa        -4  Anocracy
## 27      ca                           Canada       Western        10 Democracy
## 28      cv                       Cape Verde        Africa        NA Democracy
## 29      cf         Central African Republic        Africa        -1  Anocracy
## 30      td                             Chad        Africa        -2  Anocracy
## 31      cl                            Chile Latin America         9 Democracy
## 32      cn                            China       Eastern        -7 Autocracy
## 33      co                         Colombia Latin America         7 Democracy
## 34      km                          Comoros        Africa         6 Democracy
## 35      cr                       Costa Rica Latin America        10 Democracy
## 36      hr                          Croatia       Western         7 Democracy
## 37      cu                             Cuba Latin America        -7 Autocracy
## 38      cy                           Cyprus       Western        10 Democracy
## 39      cz                   Czech Republic       Western        10 Democracy
## 40      cd Democratic Republic of the Congo        Africa        -8 Autocracy
## 41      dk                          Denmark       Western        10 Democracy
## 42      dj                         Djibouti        Africa         2  Anocracy
## 43      dm                         Dominica       Western        10 Democracy
## 44      do               Dominican Republic Latin America         8 Democracy
## 45      ec                          Ecuador Latin America         6 Democracy
## 46      eg                            Egypt       Islamic        -6 Autocracy
## 47      sv                      El Salvador Latin America         7 Democracy
## 48      gq                Equatorial Guinea        Africa        -5  Anocracy
## 49      er                          Eritrea       Islamic        -7 Autocracy
## 50      ee                          Estonia       Western         6 Democracy
## 51      et                         Ethiopia        Africa         1  Anocracy
## 52      fi                          Finland       Western        10 Democracy
## 53      fr                           France       Western         9 Democracy
## 54      ga                            Gabon        Africa        -4  Anocracy
## 55      gm                           Gambia        Africa        -5  Anocracy
## 56      ge                          Georgia         Other         7 Democracy
## 57      de                          Germany       Western        10 Democracy
## 58      gh                            Ghana        Africa         8 Democracy
## 59      gr                           Greece       Western        10 Democracy
## 60      gt                        Guatemala Latin America         8 Democracy
## 61      gn                           Guinea        Africa        -1  Anocracy
## 62      gw                    Guinea-Bissau        Africa        -1  Anocracy
## 63      gy                           Guyana Latin America         6 Democracy
## 64      ht                            Haiti Latin America        -2  Anocracy
## 65      hn                         Honduras Latin America         7 Democracy
## 66      hk                        Hong Kong       Eastern        NA  Anocracy
## 67      hu                          Hungary       Western        10 Democracy
## 68      is                          Iceland       Western        10 Democracy
## 69      in                            India       Eastern         9 Democracy
## 70      id                        Indonesia       Islamic         8 Democracy
## 71      ir                             Iran       Islamic        -6 Autocracy
## 72      iq                             Iraq       Islamic         0  Anocracy
## 73      ie                          Ireland       Western        10 Democracy
## 74      il                           Israel       Western        10 Democracy
## 75      it                            Italy       Western        10 Democracy
## 76      ci                      Ivory Coast        Africa         0  Anocracy
## 77      jm                          Jamaica       Western         9 Democracy
## 78      jp                            Japan       Eastern        10 Democracy
## 79      jo                           Jordan       Islamic        -2  Anocracy
## 80      kz                       Kazakhstan       Islamic        -6 Autocracy
## 81      ke                            Kenya        Africa         8 Democracy
## 82      ki                         Kiribati         Other        NA Democracy
## 83      kw                           Kuwait       Islamic        -7 Autocracy
## 84      kg                       Kyrgyzstan       Islamic        -3  Anocracy
## 85      la                             Laos       Eastern        -7 Autocracy
## 86      lv                           Latvia       Western         8 Democracy
## 87      lb                          Lebanon       Islamic         5  Anocracy
## 88      ls                          Lesotho        Africa         8 Democracy
## 89      lr                          Liberia        Africa         0  Anocracy
## 90      ly                            Libya       Islamic        -7 Autocracy
## 91      lt                        Lithuania       Western        10 Democracy
## 92      lu                       Luxembourg       Western        10 Democracy
## 93      mo                            Macau       Eastern        NA  Anocracy
## 94      mk                        Macedonia       Western         9 Democracy
## 95      mg                       Madagascar        Africa         7 Democracy
## 96      mw                           Malawi        Africa         6 Democracy
## 97      my                         Malaysia       Islamic         3  Anocracy
## 98      mv                         Maldives        Africa        10 Democracy
## 99      ml                             Mali        Africa         6 Democracy
## 100     mt                            Malta       Western        10 Democracy
## 101     mr                       Mauritania        Africa        -6 Autocracy
## 102     mu                        Mauritius        Africa        10 Democracy
## 103     mx                           Mexico Latin America         8 Democracy
## 104     md                          Moldova         Other         8 Democracy
## 105     mn                         Mongolia       Eastern        10 Democracy
## 106     me                       Montenegro       Western         8 Democracy
## 107     ma                          Morocco       Islamic        -6 Autocracy
## 108     mz                       Mozambique        Africa         6 Democracy
## 109     mm                          Myanmar       Eastern        -8 Autocracy
## 110     na                          Namibia        Africa         6 Democracy
## 111     np                            Nepal       Eastern        -6 Autocracy
## 112     nl                      Netherlands       Western        10 Democracy
## 113     nz                      New Zealand       Western        10 Democracy
## 114     ni                        Nicaragua Latin America         8 Democracy
## 115     ne                            Niger        Africa         4  Anocracy
## 116     ng                          Nigeria        Africa         4  Anocracy
## 117     no                           Norway       Western        10 Democracy
## 118     om                             Oman       Islamic        -8 Autocracy
## 119     pk                         Pakistan       Islamic        -5  Anocracy
## 120     pa                           Panama Latin America         9 Democracy
## 121     pg                 Papua New Guinea         Other        10 Democracy
## 122     py                         Paraguay Latin America         8 Democracy
## 123     pe                             Peru Latin America         9 Democracy
## 124     ph                      Philippines       Western         8 Democracy
## 125     pl                           Poland       Western        10 Democracy
## 126     pt                         Portugal       Western        10 Democracy
## 127     pr                      Puerto Rico Latin America        10 Democracy
## 128     qa                            Qatar       Islamic       -10 Autocracy
## 129     cg            Republic of the Congo        Africa        -8 Autocracy
## 130     ro                          Romania       Western         9 Democracy
## 131     ru                           Russia       Western         7 Democracy
## 132     rw                           Rwanda        Africa        -3  Anocracy
## 133     lc                      Saint Lucia         Other        10 Democracy
## 134     vc Saint Vincent and the Grenadines         Other        10 Democracy
## 135     ws                            Samoa         Other        10 Democracy
## 136     st                         Sao Tome        Africa        NA Democracy
## 137     sa                     Saudi Arabia       Islamic       -10 Autocracy
## 138     sn                          Senegal        Africa         8 Democracy
## 139     rs                           Serbia       Western         6 Democracy
## 140     sc                       Seychelles        Africa        10 Democracy
## 141     sl                     Sierra Leone        Africa         5  Anocracy
## 142     sg                        Singapore       Western        -2  Anocracy
## 143     sk                         Slovakia       Western         9 Democracy
## 144     si                         Slovenia       Western        10 Democracy
## 145     sb                  Solomon Islands         Other         8 Democracy
## 146     so                          Somalia       Islamic         0  Anocracy
## 147     za                     South Africa        Africa         9 Democracy
## 148     kr                      South Korea       Eastern         8 Democracy
## 149     es                            Spain       Western        10 Democracy
## 150     lk                        Sri Lanka       Eastern         5  Anocracy
## 151     sd                            Sudan       Islamic        -6 Autocracy
## 152     sr                         Suriname        Africa        NA Democracy
## 153     sz                        Swaziland        Africa        -9 Autocracy
## 154     se                           Sweden       Western        10 Democracy
## 155     ch                      Switzerland       Western        10 Democracy
## 156     sy                            Syria       Islamic        -7 Autocracy
## 157     tw                           Taiwan       Eastern        10 Democracy
## 158     tj                       Tajikistan       Islamic        -3  Anocracy
## 159     tz                         Tanzania        Africa         2  Anocracy
## 160     th                         Thailand       Eastern         9 Democracy
## 161     tl                      Timor-Leste         Other         6 Democracy
## 162     tg                             Togo        Africa        -2  Anocracy
## 163     to                            Tonga         Other        NA Autocracy
## 164     tt              Trinidad and Tobago Latin America        10 Democracy
## 165     tn                          Tunisia       Islamic        -4  Anocracy
## 166     tr                           Turkey       Islamic         7 Democracy
## 167     tm                     Turkmenistan       Islamic        -9 Autocracy
## 168     ug                           Uganda        Africa        -4  Anocracy
## 169     ua                          Ukraine       Western         6 Democracy
## 170     ae             United Arab Emirates       Islamic       -10 Autocracy
## 171     uk                   United Kingdom       Western        10 Democracy
## 172     us                    United States       Western        10 Democracy
## 173     uy                          Uruguay Latin America        10 Democracy
## 174     uz                       Uzbekistan       Islamic        -9 Autocracy
## 175     vu                          Vanuatu         Other        NA  Anocracy
## 176     ve                        Venezuela Latin America         6 Democracy
## 177     vn                          Vietnam       Eastern        -7 Autocracy
## 178     ye                            Yemen       Islamic        -2  Anocracy
## 179     zm                           Zambia        Africa         5  Anocracy
##           OPEC hig corruption gdpcap
## 1   Non-Member 1.3        8.7    800
## 2   Non-Member 3.2        6.8   6300
## 3       Member 2.8        7.2   7000
## 4       Member 1.9        8.1   8900
## 5   Non-Member 2.9        7.1  13800
## 6   Non-Member 2.7        7.3   5900
## 7   Non-Member 8.7        1.3  38800
## 8   Non-Member 7.9        2.1  39400
## 9   Non-Member 2.3        7.7  10400
## 10  Non-Member 5.1        4.9  38400
## 11  Non-Member 2.4        7.6   1600
## 12  Non-Member 7.4        2.6  18500
## 13  Non-Member 2.4        7.6  11600
## 14  Non-Member 7.1        2.9  36600
## 15  Non-Member 2.9        7.1   1500
## 16  Non-Member 5.0        5.0   5400
## 17  Non-Member 2.7        7.3   4600
## 18  Non-Member 3.0        7.0   6300
## 19  Non-Member 5.6        4.4  13100
## 20  Non-Member 3.7        6.3  10200
## 21  Non-Member 5.5        4.5  50100
## 22  Non-Member 3.8        6.2  12600
## 23  Non-Member 3.6        6.4   1200
## 24  Non-Member 1.8        8.2    300
## 25  Non-Member 2.0        8.0   1900
## 26  Non-Member 2.2        7.8   2300
## 27  Non-Member 8.7        1.3  38400
## 28  Non-Member 5.1        4.9   3400
## 29  Non-Member 2.0        8.0    700
## 30  Non-Member 1.6        8.4   1600
## 31  Non-Member 6.7        3.3  14700
## 32  Non-Member 3.6        6.4   6600
## 33  Non-Member 3.7        6.3   9200
## 34  Non-Member 2.3        7.7   1000
## 35  Non-Member 5.3        4.7  10900
## 36  Non-Member 4.1        5.9  17600
## 37  Non-Member 4.4        5.6   9700
## 38  Non-Member 6.6        3.4  21200
## 39  Non-Member 4.9        5.1  25100
## 40  Non-Member 1.9        8.1    300
## 41  Non-Member 9.3        0.7  36000
## 42  Non-Member 2.8        7.2   2800
## 43  Non-Member 5.9        4.1  10200
## 44  Non-Member 3.0        7.0   8300
## 45      Member 2.2        7.8   7400
## 46  Non-Member 2.8        7.2   6000
## 47  Non-Member 3.4        6.6   7100
## 48  Non-Member 1.8        8.2  36600
## 49  Non-Member 2.6        7.4    700
## 50  Non-Member 6.6        3.4  18700
## 51  Non-Member 2.7        7.3    900
## 52  Non-Member 8.9        1.1  34900
## 53  Non-Member 6.9        3.1  32800
## 54  Non-Member 2.9        7.1  13900
## 55  Non-Member 2.9        7.1   1400
## 56  Non-Member 4.1        5.9   4400
## 57  Non-Member 8.0        2.0  34100
## 58  Non-Member 3.9        6.1   1500
## 59  Non-Member 3.8        6.2  32100
## 60  Non-Member 3.4        6.6   5200
## 61  Non-Member 1.8        8.2   1000
## 62  Non-Member 1.9        8.1    600
## 63  Non-Member 2.6        7.4   3800
## 64  Non-Member 1.8        8.2   1300
## 65  Non-Member 2.5        7.5   4200
## 66  Non-Member 8.2        1.8  42700
## 67  Non-Member 5.1        4.9  18600
## 68  Non-Member 8.7        1.3  39600
## 69  Non-Member 3.4        6.6   3100
## 70  Non-Member 2.8        7.2   4000
## 71      Member 1.8        8.2  12900
## 72      Member 1.5        8.5   3600
## 73  Non-Member 8.0        2.0  42200
## 74  Non-Member 6.1        3.9  28400
## 75  Non-Member 4.3        5.7  30300
## 76  Non-Member 2.1        7.9   1700
## 77  Non-Member 3.0        7.0   8200
## 78  Non-Member 7.7        2.3  32600
## 79  Non-Member 5.0        5.0   5300
## 80  Non-Member 2.7        7.3  11800
## 81  Non-Member 2.2        7.8   1600
## 82  Non-Member 2.8        7.2   6100
## 83      Member 4.1        5.9  54100
## 84  Non-Member 1.9        8.1   2100
## 85  Non-Member 2.0        8.0   2100
## 86  Non-Member 4.5        5.5  14500
## 87  Non-Member 2.5        7.5  13100
## 88  Non-Member 3.3        6.7   1700
## 89  Non-Member 3.1        6.9    500
## 90      Member 2.5        7.5  15200
## 91  Non-Member 4.9        5.1  15400
## 92  Non-Member 8.2        1.8  78000
## 93  Non-Member 5.3        4.7  33000
## 94  Non-Member 3.8        6.2   9000
## 95  Non-Member 3.0        7.0   1000
## 96  Non-Member 3.3        6.7    900
## 97  Non-Member 4.5        5.5  14800
## 98  Non-Member 2.5        7.5   4200
## 99  Non-Member 2.8        7.2   1200
## 100 Non-Member 5.2        4.8  23800
## 101 Non-Member 2.5        7.5   2100
## 102 Non-Member 5.4        4.6  12400
## 103 Non-Member 3.3        6.7  13500
## 104 Non-Member 3.3        6.7   2300
## 105 Non-Member 2.7        7.3   3200
## 106 Non-Member 3.9        6.1   9800
## 107 Non-Member 3.3        6.7   4600
## 108 Non-Member 2.5        7.5    900
## 109 Non-Member 1.4        8.6   1100
## 110 Non-Member 4.5        5.5   6400
## 111 Non-Member 2.3        7.7   1200
## 112 Non-Member 8.9        1.1  39200
## 113 Non-Member 9.4        0.6  27300
## 114 Non-Member 2.5        7.5   2800
## 115 Non-Member 2.9        7.1    700
## 116     Member 2.5        7.5   2400
## 117 Non-Member 8.6        1.4  58600
## 118 Non-Member 5.5        4.5  23900
## 119 Non-Member 2.4        7.6   2600
## 120 Non-Member 3.4        6.6  11900
## 121 Non-Member 2.1        7.9   2400
## 122 Non-Member 2.1        7.9   4100
## 123 Non-Member 3.7        6.3   8600
## 124 Non-Member 2.4        7.6   3300
## 125 Non-Member 5.0        5.0  17900
## 126 Non-Member 5.8        4.2  21800
## 127 Non-Member 5.8        4.2  17200
## 128     Member 7.0        3.0 121700
## 129 Non-Member 1.9        8.1   4100
## 130 Non-Member 3.8        6.2  11500
## 131 Non-Member 2.2        7.8  15100
## 132 Non-Member 3.3        6.7    900
## 133 Non-Member 7.0        3.0  10900
## 134 Non-Member 6.4        3.6  18100
## 135 Non-Member 4.5        5.5   5400
## 136 Non-Member 2.8        7.2   1700
## 137     Member 4.3        5.7  20400
## 138 Non-Member 3.0        7.0   1600
## 139 Non-Member 3.5        6.5  10400
## 140 Non-Member 4.8        5.2  19400
## 141 Non-Member 2.2        7.8    900
## 142 Non-Member 9.2        0.8  50300
## 143 Non-Member 4.5        5.5  21200
## 144 Non-Member 6.6        3.4  27900
## 145 Non-Member 2.8        7.2   2600
## 146 Non-Member 1.1        8.9    600
## 147 Non-Member 4.7        5.3  10100
## 148 Non-Member 5.5        4.5  28000
## 149 Non-Member 6.1        3.9  33700
## 150 Non-Member 3.1        6.9   4500
## 151 Non-Member 1.5        8.5   2300
## 152 Non-Member 3.7        6.3   9000
## 153 Non-Member 3.6        6.4   4400
## 154 Non-Member 9.2        0.8  36800
## 155 Non-Member 9.0        1.0  41700
## 156 Non-Member 2.6        7.4   4600
## 157 Non-Member 5.6        4.4  29800
## 158 Non-Member 2.0        8.0   1800
## 159 Non-Member 2.6        7.4   1400
## 160 Non-Member 3.4        6.6   8100
## 161 Non-Member 2.2        7.8   2400
## 162 Non-Member 2.8        7.2    900
## 163 Non-Member 3.0        7.0   4600
## 164 Non-Member 3.6        6.4  23100
## 165 Non-Member 4.2        5.8   8000
## 166 Non-Member 4.4        5.6  11200
## 167 Non-Member 1.8        8.2   6900
## 168 Non-Member 2.5        7.5   1300
## 169 Non-Member 2.2        7.8   6400
## 170     Member 6.5        3.5  42000
## 171 Non-Member 7.7        2.3  35200
## 172 Non-Member 7.5        2.5  46400
## 173 Non-Member 6.7        3.3  12700
## 174 Non-Member 1.7        8.3   2800
## 175 Non-Member 3.2        6.8   4800
## 176     Member 1.9        8.1  13100
## 177 Non-Member 2.7        7.3   2900
## 178 Non-Member 2.1        7.9   2500
## 179 Non-Member 3.0        7.0   1500
# Mostrar só as colunas que tem números
dt[,sapply(dt,is.numeric)]
##     democracy hig corruption gdpcap
## 1         -10 1.3        8.7    800
## 2           7 3.2        6.8   6300
## 3           2 2.8        7.2   7000
## 4          -2 1.9        8.1   8900
## 5           8 2.9        7.1  13800
## 6           5 2.7        7.3   5900
## 7          10 8.7        1.3  38800
## 8          10 7.9        2.1  39400
## 9          -7 2.3        7.7  10400
## 10         -7 5.1        4.9  38400
## 11          6 2.4        7.6   1600
## 12         10 7.4        2.6  18500
## 13         -7 2.4        7.6  11600
## 14         10 7.1        2.9  36600
## 15          6 2.9        7.1   1500
## 16         -8 5.0        5.0   5400
## 17          8 2.7        7.3   4600
## 18          3 3.0        7.0   6300
## 19          9 5.6        4.4  13100
## 20          8 3.7        6.3  10200
## 21        -10 5.5        4.5  50100
## 22          9 3.8        6.2  12600
## 23          0 3.6        6.4   1200
## 24          0 1.8        8.2    300
## 25          2 2.0        8.0   1900
## 26         -4 2.2        7.8   2300
## 27         10 8.7        1.3  38400
## 28         NA 5.1        4.9   3400
## 29         -1 2.0        8.0    700
## 30         -2 1.6        8.4   1600
## 31          9 6.7        3.3  14700
## 32         -7 3.6        6.4   6600
## 33          7 3.7        6.3   9200
## 34          6 2.3        7.7   1000
## 35         10 5.3        4.7  10900
## 36          7 4.1        5.9  17600
## 37         -7 4.4        5.6   9700
## 38         10 6.6        3.4  21200
## 39         10 4.9        5.1  25100
## 40         -8 1.9        8.1    300
## 41         10 9.3        0.7  36000
## 42          2 2.8        7.2   2800
## 43         10 5.9        4.1  10200
## 44          8 3.0        7.0   8300
## 45          6 2.2        7.8   7400
## 46         -6 2.8        7.2   6000
## 47          7 3.4        6.6   7100
## 48         -5 1.8        8.2  36600
## 49         -7 2.6        7.4    700
## 50          6 6.6        3.4  18700
## 51          1 2.7        7.3    900
## 52         10 8.9        1.1  34900
## 53          9 6.9        3.1  32800
## 54         -4 2.9        7.1  13900
## 55         -5 2.9        7.1   1400
## 56          7 4.1        5.9   4400
## 57         10 8.0        2.0  34100
## 58          8 3.9        6.1   1500
## 59         10 3.8        6.2  32100
## 60          8 3.4        6.6   5200
## 61         -1 1.8        8.2   1000
## 62         -1 1.9        8.1    600
## 63          6 2.6        7.4   3800
## 64         -2 1.8        8.2   1300
## 65          7 2.5        7.5   4200
## 66         NA 8.2        1.8  42700
## 67         10 5.1        4.9  18600
## 68         10 8.7        1.3  39600
## 69          9 3.4        6.6   3100
## 70          8 2.8        7.2   4000
## 71         -6 1.8        8.2  12900
## 72          0 1.5        8.5   3600
## 73         10 8.0        2.0  42200
## 74         10 6.1        3.9  28400
## 75         10 4.3        5.7  30300
## 76          0 2.1        7.9   1700
## 77          9 3.0        7.0   8200
## 78         10 7.7        2.3  32600
## 79         -2 5.0        5.0   5300
## 80         -6 2.7        7.3  11800
## 81          8 2.2        7.8   1600
## 82         NA 2.8        7.2   6100
## 83         -7 4.1        5.9  54100
## 84         -3 1.9        8.1   2100
## 85         -7 2.0        8.0   2100
## 86          8 4.5        5.5  14500
## 87          5 2.5        7.5  13100
## 88          8 3.3        6.7   1700
## 89          0 3.1        6.9    500
## 90         -7 2.5        7.5  15200
## 91         10 4.9        5.1  15400
## 92         10 8.2        1.8  78000
## 93         NA 5.3        4.7  33000
## 94          9 3.8        6.2   9000
## 95          7 3.0        7.0   1000
## 96          6 3.3        6.7    900
## 97          3 4.5        5.5  14800
## 98         10 2.5        7.5   4200
## 99          6 2.8        7.2   1200
## 100        10 5.2        4.8  23800
## 101        -6 2.5        7.5   2100
## 102        10 5.4        4.6  12400
## 103         8 3.3        6.7  13500
## 104         8 3.3        6.7   2300
## 105        10 2.7        7.3   3200
## 106         8 3.9        6.1   9800
## 107        -6 3.3        6.7   4600
## 108         6 2.5        7.5    900
## 109        -8 1.4        8.6   1100
## 110         6 4.5        5.5   6400
## 111        -6 2.3        7.7   1200
## 112        10 8.9        1.1  39200
## 113        10 9.4        0.6  27300
## 114         8 2.5        7.5   2800
## 115         4 2.9        7.1    700
## 116         4 2.5        7.5   2400
## 117        10 8.6        1.4  58600
## 118        -8 5.5        4.5  23900
## 119        -5 2.4        7.6   2600
## 120         9 3.4        6.6  11900
## 121        10 2.1        7.9   2400
## 122         8 2.1        7.9   4100
## 123         9 3.7        6.3   8600
## 124         8 2.4        7.6   3300
## 125        10 5.0        5.0  17900
## 126        10 5.8        4.2  21800
## 127        10 5.8        4.2  17200
## 128       -10 7.0        3.0 121700
## 129        -8 1.9        8.1   4100
## 130         9 3.8        6.2  11500
## 131         7 2.2        7.8  15100
## 132        -3 3.3        6.7    900
## 133        10 7.0        3.0  10900
## 134        10 6.4        3.6  18100
## 135        10 4.5        5.5   5400
## 136        NA 2.8        7.2   1700
## 137       -10 4.3        5.7  20400
## 138         8 3.0        7.0   1600
## 139         6 3.5        6.5  10400
## 140        10 4.8        5.2  19400
## 141         5 2.2        7.8    900
## 142        -2 9.2        0.8  50300
## 143         9 4.5        5.5  21200
## 144        10 6.6        3.4  27900
## 145         8 2.8        7.2   2600
## 146         0 1.1        8.9    600
## 147         9 4.7        5.3  10100
## 148         8 5.5        4.5  28000
## 149        10 6.1        3.9  33700
## 150         5 3.1        6.9   4500
## 151        -6 1.5        8.5   2300
## 152        NA 3.7        6.3   9000
## 153        -9 3.6        6.4   4400
## 154        10 9.2        0.8  36800
## 155        10 9.0        1.0  41700
## 156        -7 2.6        7.4   4600
## 157        10 5.6        4.4  29800
## 158        -3 2.0        8.0   1800
## 159         2 2.6        7.4   1400
## 160         9 3.4        6.6   8100
## 161         6 2.2        7.8   2400
## 162        -2 2.8        7.2    900
## 163        NA 3.0        7.0   4600
## 164        10 3.6        6.4  23100
## 165        -4 4.2        5.8   8000
## 166         7 4.4        5.6  11200
## 167        -9 1.8        8.2   6900
## 168        -4 2.5        7.5   1300
## 169         6 2.2        7.8   6400
## 170       -10 6.5        3.5  42000
## 171        10 7.7        2.3  35200
## 172        10 7.5        2.5  46400
## 173        10 6.7        3.3  12700
## 174        -9 1.7        8.3   2800
## 175        NA 3.2        6.8   4800
## 176         6 1.9        8.1  13100
## 177        -7 2.7        7.3   2900
## 178        -2 2.1        7.9   2500
## 179         5 3.0        7.0   1500
# Mostrar só as colunas que tem carcatéres
dt[,sapply(dt,is.character)]
##     scode2                            state        region      govt       OPEC
## 1       af                      Afghanistan       Islamic Autocracy Non-Member
## 2       al                          Albania       Western Democracy Non-Member
## 3       dz                          Algeria       Islamic  Anocracy     Member
## 4       ao                           Angola        Africa  Anocracy     Member
## 5       ar                        Argentina Latin America Democracy Non-Member
## 6       am                          Armenia         Other  Anocracy Non-Member
## 7       au                        Australia       Western Democracy Non-Member
## 8       at                          Austria       Western Democracy Non-Member
## 9       az                       Azerbaijan       Islamic Autocracy Non-Member
## 10      bh                          Bahrain       Islamic Autocracy Non-Member
## 11      bd                       Bangladesh       Islamic Democracy Non-Member
## 12      bb                         Barbados       Western Democracy Non-Member
## 13      by                          Belarus       Western Autocracy Non-Member
## 14      be                          Belgium       Western Democracy Non-Member
## 15      bj                            Benin        Africa Democracy Non-Member
## 16      bt                           Bhutan       Eastern Autocracy Non-Member
## 17      bo                          Bolivia Latin America Democracy Non-Member
## 18      ba           Bosnia and Herzegovina       Western  Anocracy Non-Member
## 19      bw                         Botswana        Africa Democracy Non-Member
## 20      br                           Brazil Latin America Democracy Non-Member
## 21      bn                           Brunei       Islamic Autocracy Non-Member
## 22      bg                         Bulgaria       Western Democracy Non-Member
## 23      bf                     Burkina Faso        Africa  Anocracy Non-Member
## 24      bi                          Burundi        Africa  Anocracy Non-Member
## 25      kh                         Cambodia       Eastern  Anocracy Non-Member
## 26      cm                         Cameroon        Africa  Anocracy Non-Member
## 27      ca                           Canada       Western Democracy Non-Member
## 28      cv                       Cape Verde        Africa Democracy Non-Member
## 29      cf         Central African Republic        Africa  Anocracy Non-Member
## 30      td                             Chad        Africa  Anocracy Non-Member
## 31      cl                            Chile Latin America Democracy Non-Member
## 32      cn                            China       Eastern Autocracy Non-Member
## 33      co                         Colombia Latin America Democracy Non-Member
## 34      km                          Comoros        Africa Democracy Non-Member
## 35      cr                       Costa Rica Latin America Democracy Non-Member
## 36      hr                          Croatia       Western Democracy Non-Member
## 37      cu                             Cuba Latin America Autocracy Non-Member
## 38      cy                           Cyprus       Western Democracy Non-Member
## 39      cz                   Czech Republic       Western Democracy Non-Member
## 40      cd Democratic Republic of the Congo        Africa Autocracy Non-Member
## 41      dk                          Denmark       Western Democracy Non-Member
## 42      dj                         Djibouti        Africa  Anocracy Non-Member
## 43      dm                         Dominica       Western Democracy Non-Member
## 44      do               Dominican Republic Latin America Democracy Non-Member
## 45      ec                          Ecuador Latin America Democracy     Member
## 46      eg                            Egypt       Islamic Autocracy Non-Member
## 47      sv                      El Salvador Latin America Democracy Non-Member
## 48      gq                Equatorial Guinea        Africa  Anocracy Non-Member
## 49      er                          Eritrea       Islamic Autocracy Non-Member
## 50      ee                          Estonia       Western Democracy Non-Member
## 51      et                         Ethiopia        Africa  Anocracy Non-Member
## 52      fi                          Finland       Western Democracy Non-Member
## 53      fr                           France       Western Democracy Non-Member
## 54      ga                            Gabon        Africa  Anocracy Non-Member
## 55      gm                           Gambia        Africa  Anocracy Non-Member
## 56      ge                          Georgia         Other Democracy Non-Member
## 57      de                          Germany       Western Democracy Non-Member
## 58      gh                            Ghana        Africa Democracy Non-Member
## 59      gr                           Greece       Western Democracy Non-Member
## 60      gt                        Guatemala Latin America Democracy Non-Member
## 61      gn                           Guinea        Africa  Anocracy Non-Member
## 62      gw                    Guinea-Bissau        Africa  Anocracy Non-Member
## 63      gy                           Guyana Latin America Democracy Non-Member
## 64      ht                            Haiti Latin America  Anocracy Non-Member
## 65      hn                         Honduras Latin America Democracy Non-Member
## 66      hk                        Hong Kong       Eastern  Anocracy Non-Member
## 67      hu                          Hungary       Western Democracy Non-Member
## 68      is                          Iceland       Western Democracy Non-Member
## 69      in                            India       Eastern Democracy Non-Member
## 70      id                        Indonesia       Islamic Democracy Non-Member
## 71      ir                             Iran       Islamic Autocracy     Member
## 72      iq                             Iraq       Islamic  Anocracy     Member
## 73      ie                          Ireland       Western Democracy Non-Member
## 74      il                           Israel       Western Democracy Non-Member
## 75      it                            Italy       Western Democracy Non-Member
## 76      ci                      Ivory Coast        Africa  Anocracy Non-Member
## 77      jm                          Jamaica       Western Democracy Non-Member
## 78      jp                            Japan       Eastern Democracy Non-Member
## 79      jo                           Jordan       Islamic  Anocracy Non-Member
## 80      kz                       Kazakhstan       Islamic Autocracy Non-Member
## 81      ke                            Kenya        Africa Democracy Non-Member
## 82      ki                         Kiribati         Other Democracy Non-Member
## 83      kw                           Kuwait       Islamic Autocracy     Member
## 84      kg                       Kyrgyzstan       Islamic  Anocracy Non-Member
## 85      la                             Laos       Eastern Autocracy Non-Member
## 86      lv                           Latvia       Western Democracy Non-Member
## 87      lb                          Lebanon       Islamic  Anocracy Non-Member
## 88      ls                          Lesotho        Africa Democracy Non-Member
## 89      lr                          Liberia        Africa  Anocracy Non-Member
## 90      ly                            Libya       Islamic Autocracy     Member
## 91      lt                        Lithuania       Western Democracy Non-Member
## 92      lu                       Luxembourg       Western Democracy Non-Member
## 93      mo                            Macau       Eastern  Anocracy Non-Member
## 94      mk                        Macedonia       Western Democracy Non-Member
## 95      mg                       Madagascar        Africa Democracy Non-Member
## 96      mw                           Malawi        Africa Democracy Non-Member
## 97      my                         Malaysia       Islamic  Anocracy Non-Member
## 98      mv                         Maldives        Africa Democracy Non-Member
## 99      ml                             Mali        Africa Democracy Non-Member
## 100     mt                            Malta       Western Democracy Non-Member
## 101     mr                       Mauritania        Africa Autocracy Non-Member
## 102     mu                        Mauritius        Africa Democracy Non-Member
## 103     mx                           Mexico Latin America Democracy Non-Member
## 104     md                          Moldova         Other Democracy Non-Member
## 105     mn                         Mongolia       Eastern Democracy Non-Member
## 106     me                       Montenegro       Western Democracy Non-Member
## 107     ma                          Morocco       Islamic Autocracy Non-Member
## 108     mz                       Mozambique        Africa Democracy Non-Member
## 109     mm                          Myanmar       Eastern Autocracy Non-Member
## 110     na                          Namibia        Africa Democracy Non-Member
## 111     np                            Nepal       Eastern Autocracy Non-Member
## 112     nl                      Netherlands       Western Democracy Non-Member
## 113     nz                      New Zealand       Western Democracy Non-Member
## 114     ni                        Nicaragua Latin America Democracy Non-Member
## 115     ne                            Niger        Africa  Anocracy Non-Member
## 116     ng                          Nigeria        Africa  Anocracy     Member
## 117     no                           Norway       Western Democracy Non-Member
## 118     om                             Oman       Islamic Autocracy Non-Member
## 119     pk                         Pakistan       Islamic  Anocracy Non-Member
## 120     pa                           Panama Latin America Democracy Non-Member
## 121     pg                 Papua New Guinea         Other Democracy Non-Member
## 122     py                         Paraguay Latin America Democracy Non-Member
## 123     pe                             Peru Latin America Democracy Non-Member
## 124     ph                      Philippines       Western Democracy Non-Member
## 125     pl                           Poland       Western Democracy Non-Member
## 126     pt                         Portugal       Western Democracy Non-Member
## 127     pr                      Puerto Rico Latin America Democracy Non-Member
## 128     qa                            Qatar       Islamic Autocracy     Member
## 129     cg            Republic of the Congo        Africa Autocracy Non-Member
## 130     ro                          Romania       Western Democracy Non-Member
## 131     ru                           Russia       Western Democracy Non-Member
## 132     rw                           Rwanda        Africa  Anocracy Non-Member
## 133     lc                      Saint Lucia         Other Democracy Non-Member
## 134     vc Saint Vincent and the Grenadines         Other Democracy Non-Member
## 135     ws                            Samoa         Other Democracy Non-Member
## 136     st                         Sao Tome        Africa Democracy Non-Member
## 137     sa                     Saudi Arabia       Islamic Autocracy     Member
## 138     sn                          Senegal        Africa Democracy Non-Member
## 139     rs                           Serbia       Western Democracy Non-Member
## 140     sc                       Seychelles        Africa Democracy Non-Member
## 141     sl                     Sierra Leone        Africa  Anocracy Non-Member
## 142     sg                        Singapore       Western  Anocracy Non-Member
## 143     sk                         Slovakia       Western Democracy Non-Member
## 144     si                         Slovenia       Western Democracy Non-Member
## 145     sb                  Solomon Islands         Other Democracy Non-Member
## 146     so                          Somalia       Islamic  Anocracy Non-Member
## 147     za                     South Africa        Africa Democracy Non-Member
## 148     kr                      South Korea       Eastern Democracy Non-Member
## 149     es                            Spain       Western Democracy Non-Member
## 150     lk                        Sri Lanka       Eastern  Anocracy Non-Member
## 151     sd                            Sudan       Islamic Autocracy Non-Member
## 152     sr                         Suriname        Africa Democracy Non-Member
## 153     sz                        Swaziland        Africa Autocracy Non-Member
## 154     se                           Sweden       Western Democracy Non-Member
## 155     ch                      Switzerland       Western Democracy Non-Member
## 156     sy                            Syria       Islamic Autocracy Non-Member
## 157     tw                           Taiwan       Eastern Democracy Non-Member
## 158     tj                       Tajikistan       Islamic  Anocracy Non-Member
## 159     tz                         Tanzania        Africa  Anocracy Non-Member
## 160     th                         Thailand       Eastern Democracy Non-Member
## 161     tl                      Timor-Leste         Other Democracy Non-Member
## 162     tg                             Togo        Africa  Anocracy Non-Member
## 163     to                            Tonga         Other Autocracy Non-Member
## 164     tt              Trinidad and Tobago Latin America Democracy Non-Member
## 165     tn                          Tunisia       Islamic  Anocracy Non-Member
## 166     tr                           Turkey       Islamic Democracy Non-Member
## 167     tm                     Turkmenistan       Islamic Autocracy Non-Member
## 168     ug                           Uganda        Africa  Anocracy Non-Member
## 169     ua                          Ukraine       Western Democracy Non-Member
## 170     ae             United Arab Emirates       Islamic Autocracy     Member
## 171     uk                   United Kingdom       Western Democracy Non-Member
## 172     us                    United States       Western Democracy Non-Member
## 173     uy                          Uruguay Latin America Democracy Non-Member
## 174     uz                       Uzbekistan       Islamic Autocracy Non-Member
## 175     vu                          Vanuatu         Other  Anocracy Non-Member
## 176     ve                        Venezuela Latin America Democracy     Member
## 177     vn                          Vietnam       Eastern Autocracy Non-Member
## 178     ye                            Yemen       Islamic  Anocracy Non-Member
## 179     zm                           Zambia        Africa  Anocracy Non-Member
# Mostrar só as linhas em que a região é Islamic
dt[(region == "Islamic"),]
##     scode2                state  region democracy      govt       OPEC hig
## 1       af          Afghanistan Islamic       -10 Autocracy Non-Member 1.3
## 3       dz              Algeria Islamic         2  Anocracy     Member 2.8
## 9       az           Azerbaijan Islamic        -7 Autocracy Non-Member 2.3
## 10      bh              Bahrain Islamic        -7 Autocracy Non-Member 5.1
## 11      bd           Bangladesh Islamic         6 Democracy Non-Member 2.4
## 21      bn               Brunei Islamic       -10 Autocracy Non-Member 5.5
## 46      eg                Egypt Islamic        -6 Autocracy Non-Member 2.8
## 49      er              Eritrea Islamic        -7 Autocracy Non-Member 2.6
## 70      id            Indonesia Islamic         8 Democracy Non-Member 2.8
## 71      ir                 Iran Islamic        -6 Autocracy     Member 1.8
## 72      iq                 Iraq Islamic         0  Anocracy     Member 1.5
## 79      jo               Jordan Islamic        -2  Anocracy Non-Member 5.0
## 80      kz           Kazakhstan Islamic        -6 Autocracy Non-Member 2.7
## 83      kw               Kuwait Islamic        -7 Autocracy     Member 4.1
## 84      kg           Kyrgyzstan Islamic        -3  Anocracy Non-Member 1.9
## 87      lb              Lebanon Islamic         5  Anocracy Non-Member 2.5
## 90      ly                Libya Islamic        -7 Autocracy     Member 2.5
## 97      my             Malaysia Islamic         3  Anocracy Non-Member 4.5
## 107     ma              Morocco Islamic        -6 Autocracy Non-Member 3.3
## 118     om                 Oman Islamic        -8 Autocracy Non-Member 5.5
## 119     pk             Pakistan Islamic        -5  Anocracy Non-Member 2.4
## 128     qa                Qatar Islamic       -10 Autocracy     Member 7.0
## 137     sa         Saudi Arabia Islamic       -10 Autocracy     Member 4.3
## 146     so              Somalia Islamic         0  Anocracy Non-Member 1.1
## 151     sd                Sudan Islamic        -6 Autocracy Non-Member 1.5
## 156     sy                Syria Islamic        -7 Autocracy Non-Member 2.6
## 158     tj           Tajikistan Islamic        -3  Anocracy Non-Member 2.0
## 165     tn              Tunisia Islamic        -4  Anocracy Non-Member 4.2
## 166     tr               Turkey Islamic         7 Democracy Non-Member 4.4
## 167     tm         Turkmenistan Islamic        -9 Autocracy Non-Member 1.8
## 170     ae United Arab Emirates Islamic       -10 Autocracy     Member 6.5
## 174     uz           Uzbekistan Islamic        -9 Autocracy Non-Member 1.7
## 178     ye                Yemen Islamic        -2  Anocracy Non-Member 2.1
##     corruption gdpcap
## 1          8.7    800
## 3          7.2   7000
## 9          7.7  10400
## 10         4.9  38400
## 11         7.6   1600
## 21         4.5  50100
## 46         7.2   6000
## 49         7.4    700
## 70         7.2   4000
## 71         8.2  12900
## 72         8.5   3600
## 79         5.0   5300
## 80         7.3  11800
## 83         5.9  54100
## 84         8.1   2100
## 87         7.5  13100
## 90         7.5  15200
## 97         5.5  14800
## 107        6.7   4600
## 118        4.5  23900
## 119        7.6   2600
## 128        3.0 121700
## 137        5.7  20400
## 146        8.9    600
## 151        8.5   2300
## 156        7.4   4600
## 158        8.0   1800
## 165        5.8   8000
## 166        5.6  11200
## 167        8.2   6900
## 170        3.5  42000
## 174        8.3   2800
## 178        7.9   2500
# Criar uma cópia do dataset somente com os países membros da OPEC
membros <- dt[(OPEC == "Member"),]
membros
##     scode2                state        region democracy      govt   OPEC hig
## 3       dz              Algeria       Islamic         2  Anocracy Member 2.8
## 4       ao               Angola        Africa        -2  Anocracy Member 1.9
## 45      ec              Ecuador Latin America         6 Democracy Member 2.2
## 71      ir                 Iran       Islamic        -6 Autocracy Member 1.8
## 72      iq                 Iraq       Islamic         0  Anocracy Member 1.5
## 83      kw               Kuwait       Islamic        -7 Autocracy Member 4.1
## 90      ly                Libya       Islamic        -7 Autocracy Member 2.5
## 116     ng              Nigeria        Africa         4  Anocracy Member 2.5
## 128     qa                Qatar       Islamic       -10 Autocracy Member 7.0
## 137     sa         Saudi Arabia       Islamic       -10 Autocracy Member 4.3
## 170     ae United Arab Emirates       Islamic       -10 Autocracy Member 6.5
## 176     ve            Venezuela Latin America         6 Democracy Member 1.9
##     corruption gdpcap
## 3          7.2   7000
## 4          8.1   8900
## 45         7.8   7400
## 71         8.2  12900
## 72         8.5   3600
## 83         5.9  54100
## 90         7.5  15200
## 116        7.5   2400
## 128        3.0 121700
## 137        5.7  20400
## 170        3.5  42000
## 176        8.1  13100
# Não membros
naomem <- dt[(OPEC == "Non-Member"),]
naomem
##     scode2                            state        region democracy      govt
## 1       af                      Afghanistan       Islamic       -10 Autocracy
## 2       al                          Albania       Western         7 Democracy
## 5       ar                        Argentina Latin America         8 Democracy
## 6       am                          Armenia         Other         5  Anocracy
## 7       au                        Australia       Western        10 Democracy
## 8       at                          Austria       Western        10 Democracy
## 9       az                       Azerbaijan       Islamic        -7 Autocracy
## 10      bh                          Bahrain       Islamic        -7 Autocracy
## 11      bd                       Bangladesh       Islamic         6 Democracy
## 12      bb                         Barbados       Western        10 Democracy
## 13      by                          Belarus       Western        -7 Autocracy
## 14      be                          Belgium       Western        10 Democracy
## 15      bj                            Benin        Africa         6 Democracy
## 16      bt                           Bhutan       Eastern        -8 Autocracy
## 17      bo                          Bolivia Latin America         8 Democracy
## 18      ba           Bosnia and Herzegovina       Western         3  Anocracy
## 19      bw                         Botswana        Africa         9 Democracy
## 20      br                           Brazil Latin America         8 Democracy
## 21      bn                           Brunei       Islamic       -10 Autocracy
## 22      bg                         Bulgaria       Western         9 Democracy
## 23      bf                     Burkina Faso        Africa         0  Anocracy
## 24      bi                          Burundi        Africa         0  Anocracy
## 25      kh                         Cambodia       Eastern         2  Anocracy
## 26      cm                         Cameroon        Africa        -4  Anocracy
## 27      ca                           Canada       Western        10 Democracy
## 28      cv                       Cape Verde        Africa        NA Democracy
## 29      cf         Central African Republic        Africa        -1  Anocracy
## 30      td                             Chad        Africa        -2  Anocracy
## 31      cl                            Chile Latin America         9 Democracy
## 32      cn                            China       Eastern        -7 Autocracy
## 33      co                         Colombia Latin America         7 Democracy
## 34      km                          Comoros        Africa         6 Democracy
## 35      cr                       Costa Rica Latin America        10 Democracy
## 36      hr                          Croatia       Western         7 Democracy
## 37      cu                             Cuba Latin America        -7 Autocracy
## 38      cy                           Cyprus       Western        10 Democracy
## 39      cz                   Czech Republic       Western        10 Democracy
## 40      cd Democratic Republic of the Congo        Africa        -8 Autocracy
## 41      dk                          Denmark       Western        10 Democracy
## 42      dj                         Djibouti        Africa         2  Anocracy
## 43      dm                         Dominica       Western        10 Democracy
## 44      do               Dominican Republic Latin America         8 Democracy
## 46      eg                            Egypt       Islamic        -6 Autocracy
## 47      sv                      El Salvador Latin America         7 Democracy
## 48      gq                Equatorial Guinea        Africa        -5  Anocracy
## 49      er                          Eritrea       Islamic        -7 Autocracy
## 50      ee                          Estonia       Western         6 Democracy
## 51      et                         Ethiopia        Africa         1  Anocracy
## 52      fi                          Finland       Western        10 Democracy
## 53      fr                           France       Western         9 Democracy
## 54      ga                            Gabon        Africa        -4  Anocracy
## 55      gm                           Gambia        Africa        -5  Anocracy
## 56      ge                          Georgia         Other         7 Democracy
## 57      de                          Germany       Western        10 Democracy
## 58      gh                            Ghana        Africa         8 Democracy
## 59      gr                           Greece       Western        10 Democracy
## 60      gt                        Guatemala Latin America         8 Democracy
## 61      gn                           Guinea        Africa        -1  Anocracy
## 62      gw                    Guinea-Bissau        Africa        -1  Anocracy
## 63      gy                           Guyana Latin America         6 Democracy
## 64      ht                            Haiti Latin America        -2  Anocracy
## 65      hn                         Honduras Latin America         7 Democracy
## 66      hk                        Hong Kong       Eastern        NA  Anocracy
## 67      hu                          Hungary       Western        10 Democracy
## 68      is                          Iceland       Western        10 Democracy
## 69      in                            India       Eastern         9 Democracy
## 70      id                        Indonesia       Islamic         8 Democracy
## 73      ie                          Ireland       Western        10 Democracy
## 74      il                           Israel       Western        10 Democracy
## 75      it                            Italy       Western        10 Democracy
## 76      ci                      Ivory Coast        Africa         0  Anocracy
## 77      jm                          Jamaica       Western         9 Democracy
## 78      jp                            Japan       Eastern        10 Democracy
## 79      jo                           Jordan       Islamic        -2  Anocracy
## 80      kz                       Kazakhstan       Islamic        -6 Autocracy
## 81      ke                            Kenya        Africa         8 Democracy
## 82      ki                         Kiribati         Other        NA Democracy
## 84      kg                       Kyrgyzstan       Islamic        -3  Anocracy
## 85      la                             Laos       Eastern        -7 Autocracy
## 86      lv                           Latvia       Western         8 Democracy
## 87      lb                          Lebanon       Islamic         5  Anocracy
## 88      ls                          Lesotho        Africa         8 Democracy
## 89      lr                          Liberia        Africa         0  Anocracy
## 91      lt                        Lithuania       Western        10 Democracy
## 92      lu                       Luxembourg       Western        10 Democracy
## 93      mo                            Macau       Eastern        NA  Anocracy
## 94      mk                        Macedonia       Western         9 Democracy
## 95      mg                       Madagascar        Africa         7 Democracy
## 96      mw                           Malawi        Africa         6 Democracy
## 97      my                         Malaysia       Islamic         3  Anocracy
## 98      mv                         Maldives        Africa        10 Democracy
## 99      ml                             Mali        Africa         6 Democracy
## 100     mt                            Malta       Western        10 Democracy
## 101     mr                       Mauritania        Africa        -6 Autocracy
## 102     mu                        Mauritius        Africa        10 Democracy
## 103     mx                           Mexico Latin America         8 Democracy
## 104     md                          Moldova         Other         8 Democracy
## 105     mn                         Mongolia       Eastern        10 Democracy
## 106     me                       Montenegro       Western         8 Democracy
## 107     ma                          Morocco       Islamic        -6 Autocracy
## 108     mz                       Mozambique        Africa         6 Democracy
## 109     mm                          Myanmar       Eastern        -8 Autocracy
## 110     na                          Namibia        Africa         6 Democracy
## 111     np                            Nepal       Eastern        -6 Autocracy
## 112     nl                      Netherlands       Western        10 Democracy
## 113     nz                      New Zealand       Western        10 Democracy
## 114     ni                        Nicaragua Latin America         8 Democracy
## 115     ne                            Niger        Africa         4  Anocracy
## 117     no                           Norway       Western        10 Democracy
## 118     om                             Oman       Islamic        -8 Autocracy
## 119     pk                         Pakistan       Islamic        -5  Anocracy
## 120     pa                           Panama Latin America         9 Democracy
## 121     pg                 Papua New Guinea         Other        10 Democracy
## 122     py                         Paraguay Latin America         8 Democracy
## 123     pe                             Peru Latin America         9 Democracy
## 124     ph                      Philippines       Western         8 Democracy
## 125     pl                           Poland       Western        10 Democracy
## 126     pt                         Portugal       Western        10 Democracy
## 127     pr                      Puerto Rico Latin America        10 Democracy
## 129     cg            Republic of the Congo        Africa        -8 Autocracy
## 130     ro                          Romania       Western         9 Democracy
## 131     ru                           Russia       Western         7 Democracy
## 132     rw                           Rwanda        Africa        -3  Anocracy
## 133     lc                      Saint Lucia         Other        10 Democracy
## 134     vc Saint Vincent and the Grenadines         Other        10 Democracy
## 135     ws                            Samoa         Other        10 Democracy
## 136     st                         Sao Tome        Africa        NA Democracy
## 138     sn                          Senegal        Africa         8 Democracy
## 139     rs                           Serbia       Western         6 Democracy
## 140     sc                       Seychelles        Africa        10 Democracy
## 141     sl                     Sierra Leone        Africa         5  Anocracy
## 142     sg                        Singapore       Western        -2  Anocracy
## 143     sk                         Slovakia       Western         9 Democracy
## 144     si                         Slovenia       Western        10 Democracy
## 145     sb                  Solomon Islands         Other         8 Democracy
## 146     so                          Somalia       Islamic         0  Anocracy
## 147     za                     South Africa        Africa         9 Democracy
## 148     kr                      South Korea       Eastern         8 Democracy
## 149     es                            Spain       Western        10 Democracy
## 150     lk                        Sri Lanka       Eastern         5  Anocracy
## 151     sd                            Sudan       Islamic        -6 Autocracy
## 152     sr                         Suriname        Africa        NA Democracy
## 153     sz                        Swaziland        Africa        -9 Autocracy
## 154     se                           Sweden       Western        10 Democracy
## 155     ch                      Switzerland       Western        10 Democracy
## 156     sy                            Syria       Islamic        -7 Autocracy
## 157     tw                           Taiwan       Eastern        10 Democracy
## 158     tj                       Tajikistan       Islamic        -3  Anocracy
## 159     tz                         Tanzania        Africa         2  Anocracy
## 160     th                         Thailand       Eastern         9 Democracy
## 161     tl                      Timor-Leste         Other         6 Democracy
## 162     tg                             Togo        Africa        -2  Anocracy
## 163     to                            Tonga         Other        NA Autocracy
## 164     tt              Trinidad and Tobago Latin America        10 Democracy
## 165     tn                          Tunisia       Islamic        -4  Anocracy
## 166     tr                           Turkey       Islamic         7 Democracy
## 167     tm                     Turkmenistan       Islamic        -9 Autocracy
## 168     ug                           Uganda        Africa        -4  Anocracy
## 169     ua                          Ukraine       Western         6 Democracy
## 171     uk                   United Kingdom       Western        10 Democracy
## 172     us                    United States       Western        10 Democracy
## 173     uy                          Uruguay Latin America        10 Democracy
## 174     uz                       Uzbekistan       Islamic        -9 Autocracy
## 175     vu                          Vanuatu         Other        NA  Anocracy
## 177     vn                          Vietnam       Eastern        -7 Autocracy
## 178     ye                            Yemen       Islamic        -2  Anocracy
## 179     zm                           Zambia        Africa         5  Anocracy
##           OPEC hig corruption gdpcap
## 1   Non-Member 1.3        8.7    800
## 2   Non-Member 3.2        6.8   6300
## 5   Non-Member 2.9        7.1  13800
## 6   Non-Member 2.7        7.3   5900
## 7   Non-Member 8.7        1.3  38800
## 8   Non-Member 7.9        2.1  39400
## 9   Non-Member 2.3        7.7  10400
## 10  Non-Member 5.1        4.9  38400
## 11  Non-Member 2.4        7.6   1600
## 12  Non-Member 7.4        2.6  18500
## 13  Non-Member 2.4        7.6  11600
## 14  Non-Member 7.1        2.9  36600
## 15  Non-Member 2.9        7.1   1500
## 16  Non-Member 5.0        5.0   5400
## 17  Non-Member 2.7        7.3   4600
## 18  Non-Member 3.0        7.0   6300
## 19  Non-Member 5.6        4.4  13100
## 20  Non-Member 3.7        6.3  10200
## 21  Non-Member 5.5        4.5  50100
## 22  Non-Member 3.8        6.2  12600
## 23  Non-Member 3.6        6.4   1200
## 24  Non-Member 1.8        8.2    300
## 25  Non-Member 2.0        8.0   1900
## 26  Non-Member 2.2        7.8   2300
## 27  Non-Member 8.7        1.3  38400
## 28  Non-Member 5.1        4.9   3400
## 29  Non-Member 2.0        8.0    700
## 30  Non-Member 1.6        8.4   1600
## 31  Non-Member 6.7        3.3  14700
## 32  Non-Member 3.6        6.4   6600
## 33  Non-Member 3.7        6.3   9200
## 34  Non-Member 2.3        7.7   1000
## 35  Non-Member 5.3        4.7  10900
## 36  Non-Member 4.1        5.9  17600
## 37  Non-Member 4.4        5.6   9700
## 38  Non-Member 6.6        3.4  21200
## 39  Non-Member 4.9        5.1  25100
## 40  Non-Member 1.9        8.1    300
## 41  Non-Member 9.3        0.7  36000
## 42  Non-Member 2.8        7.2   2800
## 43  Non-Member 5.9        4.1  10200
## 44  Non-Member 3.0        7.0   8300
## 46  Non-Member 2.8        7.2   6000
## 47  Non-Member 3.4        6.6   7100
## 48  Non-Member 1.8        8.2  36600
## 49  Non-Member 2.6        7.4    700
## 50  Non-Member 6.6        3.4  18700
## 51  Non-Member 2.7        7.3    900
## 52  Non-Member 8.9        1.1  34900
## 53  Non-Member 6.9        3.1  32800
## 54  Non-Member 2.9        7.1  13900
## 55  Non-Member 2.9        7.1   1400
## 56  Non-Member 4.1        5.9   4400
## 57  Non-Member 8.0        2.0  34100
## 58  Non-Member 3.9        6.1   1500
## 59  Non-Member 3.8        6.2  32100
## 60  Non-Member 3.4        6.6   5200
## 61  Non-Member 1.8        8.2   1000
## 62  Non-Member 1.9        8.1    600
## 63  Non-Member 2.6        7.4   3800
## 64  Non-Member 1.8        8.2   1300
## 65  Non-Member 2.5        7.5   4200
## 66  Non-Member 8.2        1.8  42700
## 67  Non-Member 5.1        4.9  18600
## 68  Non-Member 8.7        1.3  39600
## 69  Non-Member 3.4        6.6   3100
## 70  Non-Member 2.8        7.2   4000
## 73  Non-Member 8.0        2.0  42200
## 74  Non-Member 6.1        3.9  28400
## 75  Non-Member 4.3        5.7  30300
## 76  Non-Member 2.1        7.9   1700
## 77  Non-Member 3.0        7.0   8200
## 78  Non-Member 7.7        2.3  32600
## 79  Non-Member 5.0        5.0   5300
## 80  Non-Member 2.7        7.3  11800
## 81  Non-Member 2.2        7.8   1600
## 82  Non-Member 2.8        7.2   6100
## 84  Non-Member 1.9        8.1   2100
## 85  Non-Member 2.0        8.0   2100
## 86  Non-Member 4.5        5.5  14500
## 87  Non-Member 2.5        7.5  13100
## 88  Non-Member 3.3        6.7   1700
## 89  Non-Member 3.1        6.9    500
## 91  Non-Member 4.9        5.1  15400
## 92  Non-Member 8.2        1.8  78000
## 93  Non-Member 5.3        4.7  33000
## 94  Non-Member 3.8        6.2   9000
## 95  Non-Member 3.0        7.0   1000
## 96  Non-Member 3.3        6.7    900
## 97  Non-Member 4.5        5.5  14800
## 98  Non-Member 2.5        7.5   4200
## 99  Non-Member 2.8        7.2   1200
## 100 Non-Member 5.2        4.8  23800
## 101 Non-Member 2.5        7.5   2100
## 102 Non-Member 5.4        4.6  12400
## 103 Non-Member 3.3        6.7  13500
## 104 Non-Member 3.3        6.7   2300
## 105 Non-Member 2.7        7.3   3200
## 106 Non-Member 3.9        6.1   9800
## 107 Non-Member 3.3        6.7   4600
## 108 Non-Member 2.5        7.5    900
## 109 Non-Member 1.4        8.6   1100
## 110 Non-Member 4.5        5.5   6400
## 111 Non-Member 2.3        7.7   1200
## 112 Non-Member 8.9        1.1  39200
## 113 Non-Member 9.4        0.6  27300
## 114 Non-Member 2.5        7.5   2800
## 115 Non-Member 2.9        7.1    700
## 117 Non-Member 8.6        1.4  58600
## 118 Non-Member 5.5        4.5  23900
## 119 Non-Member 2.4        7.6   2600
## 120 Non-Member 3.4        6.6  11900
## 121 Non-Member 2.1        7.9   2400
## 122 Non-Member 2.1        7.9   4100
## 123 Non-Member 3.7        6.3   8600
## 124 Non-Member 2.4        7.6   3300
## 125 Non-Member 5.0        5.0  17900
## 126 Non-Member 5.8        4.2  21800
## 127 Non-Member 5.8        4.2  17200
## 129 Non-Member 1.9        8.1   4100
## 130 Non-Member 3.8        6.2  11500
## 131 Non-Member 2.2        7.8  15100
## 132 Non-Member 3.3        6.7    900
## 133 Non-Member 7.0        3.0  10900
## 134 Non-Member 6.4        3.6  18100
## 135 Non-Member 4.5        5.5   5400
## 136 Non-Member 2.8        7.2   1700
## 138 Non-Member 3.0        7.0   1600
## 139 Non-Member 3.5        6.5  10400
## 140 Non-Member 4.8        5.2  19400
## 141 Non-Member 2.2        7.8    900
## 142 Non-Member 9.2        0.8  50300
## 143 Non-Member 4.5        5.5  21200
## 144 Non-Member 6.6        3.4  27900
## 145 Non-Member 2.8        7.2   2600
## 146 Non-Member 1.1        8.9    600
## 147 Non-Member 4.7        5.3  10100
## 148 Non-Member 5.5        4.5  28000
## 149 Non-Member 6.1        3.9  33700
## 150 Non-Member 3.1        6.9   4500
## 151 Non-Member 1.5        8.5   2300
## 152 Non-Member 3.7        6.3   9000
## 153 Non-Member 3.6        6.4   4400
## 154 Non-Member 9.2        0.8  36800
## 155 Non-Member 9.0        1.0  41700
## 156 Non-Member 2.6        7.4   4600
## 157 Non-Member 5.6        4.4  29800
## 158 Non-Member 2.0        8.0   1800
## 159 Non-Member 2.6        7.4   1400
## 160 Non-Member 3.4        6.6   8100
## 161 Non-Member 2.2        7.8   2400
## 162 Non-Member 2.8        7.2    900
## 163 Non-Member 3.0        7.0   4600
## 164 Non-Member 3.6        6.4  23100
## 165 Non-Member 4.2        5.8   8000
## 166 Non-Member 4.4        5.6  11200
## 167 Non-Member 1.8        8.2   6900
## 168 Non-Member 2.5        7.5   1300
## 169 Non-Member 2.2        7.8   6400
## 171 Non-Member 7.7        2.3  35200
## 172 Non-Member 7.5        2.5  46400
## 173 Non-Member 6.7        3.3  12700
## 174 Non-Member 1.7        8.3   2800
## 175 Non-Member 3.2        6.8   4800
## 177 Non-Member 2.7        7.3   2900
## 178 Non-Member 2.1        7.9   2500
## 179 Non-Member 3.0        7.0   1500

Amostra do dataframe

Em bootstrapping ou validação cruzada nós podemos querer selecionar certas linhas do dataframe randomicamente. Nós usamos a função sample para isto. O default é replace=FALSE,ele realiza o shuffling cada linha é selecionada uma única vez, enquanto a opção replace=TRUE (amostragem com reposição) permite multiplas cópias de certas linhas.

# Usamos `dim`para saber quantas linhas e colunas temos
dim(dt)
## [1] 179   9
# Criar uma cópia do datafram com uma amostra de 8 linhas dos dados dentre as 179 linhas.
amostra <- dt[sample(1:179,8),]
amostra
##     scode2    state        region democracy      govt       OPEC hig corruption
## 104     md  Moldova         Other         8 Democracy Non-Member 3.3        6.7
## 146     so  Somalia       Islamic         0  Anocracy Non-Member 1.1        8.9
## 144     si Slovenia       Western        10 Democracy Non-Member 6.6        3.4
## 98      mv Maldives        Africa        10 Democracy Non-Member 2.5        7.5
## 31      cl    Chile Latin America         9 Democracy Non-Member 6.7        3.3
## 13      by  Belarus       Western        -7 Autocracy Non-Member 2.4        7.6
## 117     no   Norway       Western        10 Democracy Non-Member 8.6        1.4
## 109     mm  Myanmar       Eastern        -8 Autocracy Non-Member 1.4        8.6
##     gdpcap
## 104   2300
## 146    600
## 144  27900
## 98    4200
## 31   14700
## 13   11600
## 117  58600
## 109   1100