[R] mathematics in R graphics

Chong Gu chong at stat.purdue.edu
Wed Jun 23 19:43:33 CEST 1999

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.

Thanks in advance for any clue that may help.

Chong Gu
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