Showing multiple axis labels using ggplot2 with facet_wrap in R

Question

I've got a nice facet_wrap density plot that I have created with ggplot2. I would like for each panel to have x and y axis labels instead of only having the y axis labels along the left side and the x labels along the bottom. What I have right now looks like this:

library(ggplot2)
myGroups <- sample(c("Mo", "Larry", "Curly"), 100, replace=T)
myValues <- rnorm(300)
df <- data.frame(myGroups, myValues)


p <- ggplot(df)  + 
  geom_density(aes(myValues), fill = alpha("#335785", .6)) + 
  facet_wrap(~ myGroups)
p

Which returns:

_{(source: cerebralmastication.com)}

It seems like this should be simple, but my Google Fu has been too poor to find an answer.

Answer 1

You can do this by including the scales="free" option in your facet_wrap call:

myGroups <- sample(c("Mo", "Larry", "Curly"), 100, replace=T)
myValues <- rnorm(300)
df <- data.frame(myGroups, myValues)


p <- ggplot(df)  + 
  geom_density(aes(myValues), fill = alpha("#335785", .6)) + 
  facet_wrap(~ myGroups, scales="free")
p