mtcars2 {crosstable}

Modified mtcars dataset

Description

Modified mtcars dataset so:

• every column is labelled (using label attribute)

• rownames are a character column named model

• gear and cyl columns are considered as numerical factors

• vs and am columns are considered as character vector

See mtcars for more informations on the original "Motor Trend Car Road Tests" dataset.

Usage

mtcars2

Format

A data frame with 32 observations on 11 variables with labels.

Source

library(dplyr)
mtcars2 = mtcars %>%
    mutate(
       model=rownames(mtcars),
       vs=ifelse(vs==0, "vshaped", "straight"),
       am=ifelse(am==0, "auto", "manual"),
       across(c("cyl", "gear"), factor),
       .before=1
    ) %>%
    expss::apply_labels( #I also could have used [import_labels] or even `labelled::set_variable_labels()`
        mpg="Miles/(US) gallon",
        cyl="Number of cylinders",
        disp="Displacement (cu.in.)",
        hp="Gross horsepower",
        drat="Rear axle ratio",
        wt="Weight (1000 lbs)",
        qsec="1/4 mile time",
        vs="Engine",
        am="Transmission",
        gear="Number of forward gears",
       carb="Number of carburetors"
    )

Examples

library(crosstable)
ct=crosstable(mtcars2, by=vs)
ct
as_flextable(ct)