Stacked histogram from already summarized counts using ggplot2

Question

I would like some help coloring a ggplot2 histogram generated from already-summarized count data.

The data are something like counts of # males and # females living

Answer 1

How about:

library("reshape2")
mm <- melt(X[,1:2])
ggplot(mm,aes(x=value,fill=variable))+geom_histogram(position="stack")