[R] Math expressions in pie chart labels?

[Johannes Graumann]

On Wednesday 03 May 2006 09:05, Uwe Ligges wrote:
> Ah, I see, this happens in pie()'s line:
>
>    if (!is.na(lab <- labels[i]) && lab != "") {
>
> where lab is one element of the expression.
> I'd like to propose to change that line to
>
>    if (!is.na(lab <- labels[i]) && nchar(lab) > 0) {

What's the canonical way of patching something like this in R? Redefining the 
function at the start of your script?

Joh
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