A data frame with 28 observations on 2 variables, dinosaur and length.
Examples
data(dino)
str(dino)
#> 'data.frame': 28 obs. of 2 variables:
#> $ Dinosaur: Factor w/ 28 levels "'Acrocanthosaurus (top-spined lizard)'",..: 1 2 3 4 5 6 7 8 9 10 ...
#> $ Length : num 12.2 9.1 12.2 22.9 0.9 36.6 9.1 30.5 6.1 2.7 ...