For the legend= argument use this in place of what you have now:
legend = expression("0.5th ES test","0.75th ES test", chi^2 ~ test, "t test")
On Thu, Mar 27, 2008 at 11:54 PM, kate <[EMAIL PROTECTED]> wrote:
> My original legend is
>
> matplot(c,cbind(ES5,ES75,chisq,t),type ='l',
> col=c("brown","red","blue","black"),ylab='power')
>
> legend(5,0.7,paste(c("0.5th ES test","0.75th ES test", "Chi-square test", "t
> test")),col=c("brown","red","blue","black"),lty=1:4,cex=1)
>
> I would like to change "Chi-square" to the greek letter chi^2, how could I do
> it in R?
>
> Thanks,
>
> Kate
> [[alternative HTML version deleted]]
>
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