Index
Jhon Jairo Escobar
2026-03-19
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summary(cars)## speed dist
## Min. : 4.0 Min. : 2.00
## 1st Qu.:12.0 1st Qu.: 26.00
## Median :15.0 Median : 36.00
## Mean :15.4 Mean : 42.98
## 3rd Qu.:19.0 3rd Qu.: 56.00
## Max. :25.0 Max. :120.00Including Plots
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library(wooldridge)## Warning: package 'wooldridge' was built under R version 4.5.2data(wage1)
View(wage1)
head(wage1)## wage educ exper tenure nonwhite female married numdep smsa northcen south
## 1 3.10 11 2 0 0 1 0 2 1 0 0
## 2 3.24 12 22 2 0 1 1 3 1 0 0
## 3 3.00 11 2 0 0 0 0 2 0 0 0
## 4 6.00 8 44 28 0 0 1 0 1 0 0
## 5 5.30 12 7 2 0 0 1 1 0 0 0
## 6 8.75 16 9 8 0 0 1 0 1 0 0
## west construc ndurman trcommpu trade services profserv profocc clerocc
## 1 1 0 0 0 0 0 0 0 0
## 2 1 0 0 0 0 1 0 0 0
## 3 1 0 0 0 1 0 0 0 0
## 4 1 0 0 0 0 0 0 0 1
## 5 1 0 0 0 0 0 0 0 0
## 6 1 0 0 0 0 0 1 1 0
## servocc lwage expersq tenursq
## 1 0 1.131402 4 0
## 2 1 1.175573 484 4
## 3 0 1.098612 4 0
## 4 0 1.791759 1936 784
## 5 0 1.667707 49 4
## 6 0 2.169054 81 64str(wage1)## 'data.frame': 526 obs. of 24 variables:
## $ wage : num 3.1 3.24 3 6 5.3 ...
## $ educ : int 11 12 11 8 12 16 18 12 12 17 ...
## $ exper : int 2 22 2 44 7 9 15 5 26 22 ...
## $ tenure : int 0 2 0 28 2 8 7 3 4 21 ...
## $ nonwhite: int 0 0 0 0 0 0 0 0 0 0 ...
## $ female : int 1 1 0 0 0 0 0 1 1 0 ...
## $ married : int 0 1 0 1 1 1 0 0 0 1 ...
## $ numdep : int 2 3 2 0 1 0 0 0 2 0 ...
## $ smsa : int 1 1 0 1 0 1 1 1 1 1 ...
## $ northcen: int 0 0 0 0 0 0 0 0 0 0 ...
## $ south : int 0 0 0 0 0 0 0 0 0 0 ...
## $ west : int 1 1 1 1 1 1 1 1 1 1 ...
## $ construc: int 0 0 0 0 0 0 0 0 0 0 ...
## $ ndurman : int 0 0 0 0 0 0 0 0 0 0 ...
## $ trcommpu: int 0 0 0 0 0 0 0 0 0 0 ...
## $ trade : int 0 0 1 0 0 0 1 0 1 0 ...
## $ services: int 0 1 0 0 0 0 0 0 0 0 ...
## $ profserv: int 0 0 0 0 0 1 0 0 0 0 ...
## $ profocc : int 0 0 0 0 0 1 1 1 1 1 ...
## $ clerocc : int 0 0 0 1 0 0 0 0 0 0 ...
## $ servocc : int 0 1 0 0 0 0 0 0 0 0 ...
## $ lwage : num 1.13 1.18 1.1 1.79 1.67 ...
## $ expersq : int 4 484 4 1936 49 81 225 25 676 484 ...
## $ tenursq : int 0 4 0 784 4 64 49 9 16 441 ...
## - attr(*, "time.stamp")= chr "25 Jun 2011 23:03"summary(wage1)## wage educ exper tenure
## Min. : 0.530 Min. : 0.00 Min. : 1.00 Min. : 0.000
## 1st Qu.: 3.330 1st Qu.:12.00 1st Qu.: 5.00 1st Qu.: 0.000
## Median : 4.650 Median :12.00 Median :13.50 Median : 2.000
## Mean : 5.896 Mean :12.56 Mean :17.02 Mean : 5.105
## 3rd Qu.: 6.880 3rd Qu.:14.00 3rd Qu.:26.00 3rd Qu.: 7.000
## Max. :24.980 Max. :18.00 Max. :51.00 Max. :44.000
## nonwhite female married numdep
## Min. :0.0000 Min. :0.0000 Min. :0.0000 Min. :0.000
## 1st Qu.:0.0000 1st Qu.:0.0000 1st Qu.:0.0000 1st Qu.:0.000
## Median :0.0000 Median :0.0000 Median :1.0000 Median :1.000
## Mean :0.1027 Mean :0.4791 Mean :0.6084 Mean :1.044
## 3rd Qu.:0.0000 3rd Qu.:1.0000 3rd Qu.:1.0000 3rd Qu.:2.000
## Max. :1.0000 Max. :1.0000 Max. :1.0000 Max. :6.000
## smsa northcen south west
## Min. :0.0000 Min. :0.000 Min. :0.0000 Min. :0.0000
## 1st Qu.:0.0000 1st Qu.:0.000 1st Qu.:0.0000 1st Qu.:0.0000
## Median :1.0000 Median :0.000 Median :0.0000 Median :0.0000
## Mean :0.7224 Mean :0.251 Mean :0.3555 Mean :0.1692
## 3rd Qu.:1.0000 3rd Qu.:0.750 3rd Qu.:1.0000 3rd Qu.:0.0000
## Max. :1.0000 Max. :1.000 Max. :1.0000 Max. :1.0000
## construc ndurman trcommpu trade
## Min. :0.00000 Min. :0.0000 Min. :0.00000 Min. :0.0000
## 1st Qu.:0.00000 1st Qu.:0.0000 1st Qu.:0.00000 1st Qu.:0.0000
## Median :0.00000 Median :0.0000 Median :0.00000 Median :0.0000
## Mean :0.04563 Mean :0.1141 Mean :0.04373 Mean :0.2871
## 3rd Qu.:0.00000 3rd Qu.:0.0000 3rd Qu.:0.00000 3rd Qu.:1.0000
## Max. :1.00000 Max. :1.0000 Max. :1.00000 Max. :1.0000
## services profserv profocc clerocc
## Min. :0.0000 Min. :0.0000 Min. :0.0000 Min. :0.0000
## 1st Qu.:0.0000 1st Qu.:0.0000 1st Qu.:0.0000 1st Qu.:0.0000
## Median :0.0000 Median :0.0000 Median :0.0000 Median :0.0000
## Mean :0.1008 Mean :0.2586 Mean :0.3669 Mean :0.1673
## 3rd Qu.:0.0000 3rd Qu.:1.0000 3rd Qu.:1.0000 3rd Qu.:0.0000
## Max. :1.0000 Max. :1.0000 Max. :1.0000 Max. :1.0000
## servocc lwage expersq tenursq
## Min. :0.0000 Min. :-0.6349 Min. : 1.0 Min. : 0.00
## 1st Qu.:0.0000 1st Qu.: 1.2030 1st Qu.: 25.0 1st Qu.: 0.00
## Median :0.0000 Median : 1.5369 Median : 182.5 Median : 4.00
## Mean :0.1407 Mean : 1.6233 Mean : 473.4 Mean : 78.15
## 3rd Qu.:0.0000 3rd Qu.: 1.9286 3rd Qu.: 676.0 3rd Qu.: 49.00
## Max. :1.0000 Max. : 3.2181 Max. :2601.0 Max. :1936.00