[R] mathematics in R graphics

[Thomas Lumley]

On Wed, 23 Jun 1999, Chong Gu wrote:

> 
> I was reading Chapter 2 of the R manual that came with 64.1, but
> couldn't get the behavior out of expressions as described in the
> manual.  Is there any example on the subject?  For example, "x sub i"
> is supposed to be produced by "x[i]", but where to put it?  I tried
> mtext(text=x[i]) and R simply interprets that as a regular expression.

You need
	mtext(text=expression(x[i]))


Thomas Lumley
Assistant Professor, Biostatistics
University of Washington, Seattle

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