In the mtcars dataset, the names of the car models are
stored as row names. However, when working with ggplot2 and other
packages from the tidyverse, it is convenient to have all data in columns.
mtcars2 is a variant of mtcars that contains car models in a column
instead of storing them as row names.
mtcars_na is the same dataset as mtcars2, but some of the columns
contain missing values.
Format
A data frame with 32 rows and 12 variables. The format is identical
to mtcars and details can be found in its documentation. The only
difference is that the car model names are stored in the column model
instead of the row names.