R: Examples for 'datasets::mtcars'

### ** Examples

require(graphics)
pairs(mtcars, main = "mtcars data", gap = 1/4)

coplot(mpg ~ disp | as.factor(cyl), data = mtcars,
       panel = panel.smooth, rows = 1)

## possibly more meaningful, e.g., for summary() or bivariate plots:
mtcars2 <- within(mtcars, {
   vs <- factor(vs, labels = c("V", "S"))
   am <- factor(am, labels = c("automatic", "manual"))
   cyl  <- ordered(cyl)
   gear <- ordered(gear)
   carb <- ordered(carb)
})
summary(mtcars2)

      mpg        cyl         disp             hp             drat      
 Min.   :10.40   4:11   Min.   : 71.1   Min.   : 52.0   Min.   :2.760  
 1st Qu.:15.43   6: 7   1st Qu.:120.8   1st Qu.: 96.5   1st Qu.:3.080  
 Median :19.20   8:14   Median :196.3   Median :123.0   Median :3.695  
 Mean   :20.09          Mean   :230.7   Mean   :146.7   Mean   :3.597  
 3rd Qu.:22.80          3rd Qu.:326.0   3rd Qu.:180.0   3rd Qu.:3.920  
 Max.   :33.90          Max.   :472.0   Max.   :335.0   Max.   :4.930  
       wt             qsec       vs             am     gear   carb  
 Min.   :1.513   Min.   :14.50   V:18   automatic:19   3:15   1: 7  
 1st Qu.:2.581   1st Qu.:16.89   S:14   manual   :13   4:12   2:10  
 Median :3.325   Median :17.71                         5: 5   3: 3  
 Mean   :3.217   Mean   :17.85                                4:10  
 3rd Qu.:3.610   3rd Qu.:18.90                                6: 1  
 Max.   :5.424   Max.   :22.90                                8: 1

Examples for 'datasets::mtcars'

Motor Trend Car Road Tests