How to create a graph layout?

I all,
I want to create a graph layout in a 3x3 matrix like this:

ylab  |__|  |__|   |__|
      ___  ___   ___
ylab  |__|  |__|   |__|
      ___  ___   ___
ylab  |__|  |__|   |__|
       xl     xl     xl

With this layout, then I'll insert the 9 plots. How ca I create it?

see ?layout
# Example
layout(matrix(1:9,ncol=3, byrow=TRUE))
for(i in 1:9) plot(density(rnorm(1000)), main=paste("Graph N?",i))

Hope it helps.

Etienne

-- 
CdeB

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+                                                                             
+ Cuvelier Etienne                                                    
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