Re: [R] plotting question

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Subject: Re: [R] plotting question
From: Douglas Bates (bates@stat.wisc.edu)
Date: Thu 27 Apr 2000 - 04:08:20 EST 

Message-ID: <6rbt2wohuz.fsf@franz.stat.wisc.edu>

Thaddeus Tarpey <thaddeus.tarpey@wright.edu> writes:

> I would like to plot two different samples on the same scatterplot in R
> using different symbols for the different groups.
> Could someone please let me know how this can be done?

One way is to use the pch argument to the plot function, as in

> library(MASS)
> data(michelson)
> plot(Speed ~ as.integer(Run), data = michelson, pch = as.integer(Expt))
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