TD2

JE VEUX CHARGER UNE BASE

data("mtcars")
df <- mtcars
head(df)

##                    mpg cyl disp  hp drat    wt  qsec vs am gear carb
## Mazda RX4         21.0   6  160 110 3.90 2.620 16.46  0  1    4    4
## Mazda RX4 Wag     21.0   6  160 110 3.90 2.875 17.02  0  1    4    4
## Datsun 710        22.8   4  108  93 3.85 2.320 18.61  1  1    4    1
## Hornet 4 Drive    21.4   6  258 110 3.08 3.215 19.44  1  0    3    1
## Hornet Sportabout 18.7   8  360 175 3.15 3.440 17.02  0  0    3    2
## Valiant           18.1   6  225 105 2.76 3.460 20.22  1  0    3    1

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table(df$mpg)

## 
## 10.4 13.3 14.3 14.7   15 15.2 15.5 15.8 16.4 17.3 17.8 18.1 18.7 19.2 19.7   21 
##    2    1    1    1    1    2    1    1    1    1    1    1    1    2    1    2 
## 21.4 21.5 22.8 24.4   26 27.3 30.4 32.4 33.9 
##    2    1    2    1    1    1    2    1    1