Dear R's (most likely Hadley),
I want to build a stacked bar plot where I would like to define which
colours will be used for each of the groups. However, I do not seem
to find a way to do this, even if I've been looking over many places.
I have tried several variations, and my final try was this code, but
I still do not manage to get the colours as I pre-define. Any hints
about how to get this?
Thanks in advance,
Pedro
============================================
my code:
>plotdata1<-data.frame(x=rep(factor(1:4),4), y=rep(0.1*(1:4),4),
+group=as.character(rep(c('white', 'red', 'blue', 'green'),rep(4,4))))
>plot0<-ggplot()
>plot3<-plot0+layer(data=plotdata1, mapping=aes_string(x='x',y='y',
+fill='group'),geom='bar', stat='identity', position='stack')
>print(plot3)
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