[R] Math expressions in pie chart labels?

[Uwe Ligges]

Johannes Graumann wrote:

> On Tuesday 02 May 2006 23:33, Uwe Ligges wrote:
> 
>>Then please read ?plotmath and use it:
>>
>>labels = expression("" >= 0.66, "" == 0.33, "" <= -0.33, "" <= -0.66)
> 
> 
> Error in lab != "" : comparison is not allowed for expressions
> In addition: Warning message:
> is.na() applied to non-(list or vector) in: is.na(lab <- labels[i])
> 
> I don't seem to be the only one having problems with this ;0)


Then please tell us the details, I just tried successfully:

plot(1:10, xaxt="n")
axis(1, at = c(1,3,5,7), labels =
      expression("" >= 0.66, "" == 0.33, "" <= -0.33, "" <= -0.66))

Uwe Ligges

> Joh