Rcrastinate

Today I want to write about a solution to a quite specific problem. Suppose, you want to label cells in your 'vcd' package mosaic plots in a custom way. For example, we might want to use cell labels which indicate "too much" or "too few" cases (given your expected values). Such labels might be "+" and "-" (and maybe "++" and "--" for higher residuals).

We create our custom table:

tab <- rbind(c(450, 230),

c(200, 600))

We create our mosaic plot:

library(vcd)

mosaic(tab, shade = T)

So far, so good.

Now, we want to use custom labels for the cells.