[R] multiple plots in the same graph

[Christos Hatzis]

See ?points and ?lines for adding new groups of points or lines to an
existing graph created by plot. 

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Li Zhang
Sent: Friday, November 03, 2006 9:55 PM
To: R-help at stat.math.ethz.ch
Subject: [R] multiple plots in the same graph

I'd like to plot y vs x according to the third variable "group" which has
three levels. I am wondering how can I put the three plots in one graph?

Thank you 


 
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