[R] Wrapping long labels in barplot(2)

[Mulholland, Tom]

This may not be the best way but in the past I think I have done something like

levels(x) <- paste(strwrap(levels(x),20,prefix = ""),collapse = "\n")

Tom

> -----Original Message-----
> From: Jan P. Smit [mailto:janpsmit at gmail.com]
> Sent: Thursday, 14 April 2005 11:48 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Wrapping long labels in barplot(2)
> 
> 
> I am using barplot, and barplot2 in the gregmisc bundle, in the 
> following way:
> 
> barplot2(sort(xtabs(expend / 1000 ~ theme)),
>      col = c(mdg7, mdg8, mdg3, mdg1), horiz = T, las = 1,
>      xlab = "$ '000", plot.grid = T)
> 
> The problem is that the values of 'theme', which is a factor, are in 
> some cases rather long, so that I would like to wrap/split them at a 
> space once they exceed, say, 20 characters. What I'm doing now is 
> specifying names.arg manually with '\n' where I want the 
> breaks, but I 
> would like to automate the process.
> 
> I've looked for a solution using 'strwrap', but am not sure 
> how to apply 
> it in this situation.
> 
> Jan Smit
> 
> Consultant
> Economic and Social Commission for Asia and the Pacific
> 
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