[R] plotting grouped data object

Afshartous, David afshart at exchange.sba.miami.edu
Mon Sep 25 15:56:59 CEST 2006

```Hello Xiaohui,

data.grp is just a pseudo example of a grouped data object
that is grouped according the factor y.
I just tried your suggestion, but the result is that
three separate panels are still created, whereas I would like
to have all 3 lines in a single panel.

cheers,
dave

-----Original Message-----
From: X.H Chen [mailto:xchen_stat at hotmail.com]
Sent: Saturday, September 23, 2006 6:25 PM
To: Afshartous, David; r-help at stat.math.ethz.ch
Subject: RE: [R] plotting grouped data object

I don't get your meaning in what is in datagrp, anyway, try:

X11()
par(new=T)

before calling:
plot(data.grp, outer = ~ y)

Xiaohui Chen

Dept. of Statistics

>From: "Afshartous, David" <afshart at exchange.sba.miami.edu>
>To: <r-help at stat.math.ethz.ch>
>Subject: [R] plotting grouped data object
>Date: Sat, 23 Sep 2006 18:09:38 -0400
>
>
>All,
>I'd like to plot the main relationship of a grouped data object for all

>levels of a factor in a single panel.
>The sample code below creates a separate panel for each level of the
>factor.  I realize that this could be done in other ways, but I'd like
>to do it via plotting the grouped data object.
>thanks!
>dave
>
>z = rnorm(18, mean=0, sd=1)
>x = rep(1:6, 3)
>y = factor(rep(c("I", "C", "P"), each = 6)) dat = data.frame(x, y, z)
>data.grp = groupedData(z ~ x | y, data = dat) plot(data.grp, outer = ~
>y) ### this produces 1 line each in 3 panels ### how to collapse all 3
>lines into 1 panel?
>
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