gap.barplot doesn't support data arrays?
On 2011-04-04 06:39, Andrew D. Steen wrote:
I am trying to make a barplot with a broken axis using gap.barplot (in the indispensable plotrix package). This works well when the data is a vector:
twogrp<-c(rnorm(10)+4,rnorm(10)+20) gap.barplot(twogrp,gap=c(8,16),xlab="Index",ytics=c(3,6,17,20),ylab="Group
values",main="Barplot with gap") But when the data is an array (for a bar plot with multiple series) I get an error and a strange plot with no y-tics and bars stretching downwards, as if all the values were negative:
twogrp2<-array(twogrp, dim=c(2,5))
gap.barplot(twogrp2,gap=c(8,16),xlab="Index",ytics=c(3,6,17,20),ylab="Group values",main="Barplot with gap") Error in rect(xtics[bigones] - halfwidth, botgap, xtics[bigones] + halfwidth, : cannot mix zero-length and non-zero-length coordinates However, the main title and axis labels do appear correctly. Are data arrays unsupported for gap.barplot, or am I missing something?
Looks like they're not supported, as you could easily see from the code. But do gapped stacked barplots even make sense? Not to me. Still, I think that the plotrix documentation is somewhat spotty. The help page for gap.barplot indicates that the input 'y' should be 'data values'; not overly informative. Peter Ehlers
Thanks, Drew Steen
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