Re: [R] Adding lines to xYplot

From: Bernd Weiss <>
Date: Sun 28 Jan 2007 - 05:40:46 GMT

Am 27 Jan 2007 um 20:13 hat Michael Kubovy geschrieben:

To: " list" <rhelp>

From:           	Michael Kubovy <>
Date sent:      	Sat, 27 Jan 2007 20:13:15 -0500
Subject:        	[R] Adding lines to xYplot

> I am using xYplot to plot data and CIs. How do I add several lines to
> the figure?

It's not clear what you mean by "add several lines". Maybe <panel.abline> is what you are looking for? Another option might be to use <panel.xYplot(x,y,subscripts,type="b")>...

HTH, Bernd

# Examples of plotting raw data
dfr <- expand.grid(month=1:12,


dfr <- upData(dfr, y=month/10 + 1*(sex=='female') + 2*(continent=='Europe') +

              lower=y - runif(48,.05,.15),
              upper=y + runif(48,.05,.15)

xYplot(Cbind(y,lower,upper) ~ month,
subset=sex=='male' & continent=='USA',
panel=function(x,y,subscripts){panel.xYplot(x,y,subscripts); ## add lines to the graph which denote means of x and y panel.abline(h=mean(y),v=mean(x))},data=dfr) mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Sun Jan 28 16:46:35 2007

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