How to put Values on Boxplot in R for several boxplot in one image

Question

I want to plot Delta~Project.Types in R. I have 10 Project Types. I know how to do the boxplot : boxplot(Delta~Project.Types). However, how can I put the fivenum (min, max,

Answer 1

You can add a "legend" to a base R plot that contains what you want like this:

legend("topright", bty = "n", legend = summary(Delta))

I'm assuming that it's "Delta" that you're running summary() on, so change that as needed. You can modify the appearance of what shows up in the legend using paste(), i.e.

legend("topright", bty = "n", legend = c(paste("min =", summary(Delta)[1]),
                                     paste("max =", summary(Delta)[2])))

etc.