Hello,
According to the code in file src/R/graphics/barplot.R, barplot() will
draw column by column, and threfore use as many colors as rows in the
matrix. Those colors will be reused for all bars. So I'm not seeing an
easy way of doing what you want using base graphics. Not without
changing the code for barplot().
Hope this helps,
Rui Barradas
Em 26-03-2013 18:09, Francois de Ryckel escreveu:
Dear all,
I have a 2 by 2 matrix and I would like to do a barplot with it. (so 2 bars
with each having 2 stacks.). I would like to have one colors per stack, so 4
different colors total.
The problem is that R is only given me 2 colors (the same two for the bottom
stack and the same two for the top stack). Any idea how I can do to have 4
colors? (without using ggplot2 preferably)
Here is my code
w <- matrix(table(cutMF12G3),2,2)
w
[,1] [,2]
[1,] 8 13
[2,] 8 8
barplot(w, main="2012", col=c("red", "green", "blue", "pink"))
Thanks in advance for your help.
François
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