Barplot and colors

[Tristan Lorino <tristan.lorino@lcpc.fr>]

Hi,

I have a barplot with 3 groups of 4 bars :
> barplot(ww,beside=T,ylab="Effectif (%)")
where
> ww
          BB       BBD       BBTM
0  0.2757158  0.701565  0.8334865
1  6.6929253 30.936319  6.9957713
2 40.3272231 34.201295 42.0297849
3 52.7041357 34.160820 50.1409573

I would like to have one color per group, something like:
> rep(1:3, rep(4, 3))
 [1] 1 1 1 1 2 2 2 2 3 3 3 3

but the option col=rep(1:3, rep(4, 3)) makes all the bars black.

Thank you,
Tristan Lorino

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