[R] Greek letters in plots

[Barry Rowlingson]

Johanna Hardin wrote:

> 
> *      paste("rho=", cor2[i])

> will produce a label of "rho=0.74", or whatever.  But if I use
> 'substitute' or 'evaluate' commands in order to get a real Greek letter,
> I lose the ability to paste it with a data value.

  Use parse() to turn that text into an expression. And use '==':

  > rho=0.78
  > plot(1:10,main=parse(text=paste("rho == ",rho)))

Not sure where your label is going, but the same thing should work for 
axes and text labels.

Baz