ggplot() from ggplot2 in R

Here we want one row and two columns, one column for each weight category. So we specify bmicat on the right hand side of the forumla passed to ***().

g <- ggplot(...)

g + geom_point() + geom_smooth(method = "lm") + ***(. ~ bmicat)

ggplot() from ggplot2 in R

Here we want one row and two columns, one column for each weight category. So we specify bmicat on the right hand side of the forumla passed to ***().

g <- ggplot(...)

g + geom_point() + geom_smooth(method = "lm") + ***(. ~ bmicat)

ggplot() from ggplot2 in R

Here we want one row and two columns, one column for each weight category. So we specify bmicat on the right hand side of the forumla passed to facet_grid().

g <- ggplot(...)

g + geom_point() + geom_smooth(method = "lm") + facet_grid(. ~ bmicat)