Jim, That works great. Thanks much for the quick help. Cheers, Drew
> -----Original Message----- > From: Jim Lemon [mailto:j...@bitwrit.com.au] > Sent: Tuesday, April 05, 2011 2:12 PM > To: Andrew D. Steen > Cc: r-help@r-project.org > Subject: Re: [R] gap.barplot doesn't support data arrays? > > On 04/04/2011 11:39 PM, Andrew D. Steen wrote: > > I am trying to make a barplot with a broken axis using gap.barplot > (in > > the indispensable plotrix package). > > Aww, gee, you've won me. > > > 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? > > > Hi Drew, > You are right, as is Peter, gap.barplot doesn't support arrays, only > vectors (I'll fix the docs). However, it wasn't too hard to whip up a > rough but perhaps serviceable fix in the attached function. You may > need to do some mods to the function to get exactly what you want. Try > this: > > # your twogrp2 left out the high values > twogrp2<-array(twogrp,dim=c(2,10)) > source("gap.barp.R") > gap.barp(twogrp2,gap=c(8,16),xlab="Index",ytics=c(3,6,17,20), > xtics=1:10,ylab="Groupvalues",main="Barplot with gap",col=2:3) > > gap.barp returns the modified y values so that you can include the > error bars. > > To paraphrase the immortal P.J. O'Rourke, > > "Perhaps R users shouldn't do some things in plots, but they certainly > can do them" > > Jim ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
