# help
help(plot)
help(mtcars)

# mtcars
head(mtcars)

# variable info
str(mtcars)

# One continuous variable
plot(mtcars$mpg)

# One categorical variable
plot(as.factor(mtcars$cyl))

# Two continuous variables
plot(mtcars$disp, mtcars$mpg)

# Two categorical variables
plot(as.factor(mtcars$am), as.factor(mtcars$cyl))

# Continuous/Categorical variable
plot(mtcars$mpg, mtcars$cyl)

# Categorical/Continuous variable
plot(as.factor(mtcars$cyl), mtcars$mpg)