[R] Multiple stacked barplots on the same graph?

[hadley wickham]

On Dec 4, 2007 11:19 AM, John Kane <jrkrideau at yahoo.ca> wrote:
>
> --- Domenico Vistocco <vistocco at unicas.it> wrote:
>
> > Perhaps this could be useful:
> >  > x=scan()
> > 11.81 10.51  1.95  2.08  2.51  2.05  1.98  0.63
> > 0.17  0.20
> > 12.49 13.56 2.81  3.13  4.58  0.70  0.85  0.22  0.06
> >  0.03
> >
> >  > x=matrix(x,5,4,byrow=T)
> >  > rownames(x)=paste("comp",1:5,sep="")
> >  > colnames(x)=paste("c",1:4,sep="")
> >
> >  > library(ggplot2)
> >  > dfm=melt(x)
> >  >
> >
> qplot(as.factor(x=X1),y=value,geom="histogram",data=dfm,fill=X2)
> >
> > domenico vistocco
>
> Very nice but bit garish. :)
>
> What about a dotchart instead?
>
>  dotchart(x, labels=rownames(x),col=c(1:4), pch=16)

which would be (roughly equivalent to)

qplot(X2, value, data=dfm, colour=X2, facets = . ~ X1)

in ggplot.

Hadley

-- 
http://had.co.nz/