From: Deepayan Sarkar <deepayan_at_stat.wisc.edu>

Date: Sat 17 Jul 2004 - 07:42:21 EST

R-help@stat.math.ethz.ch mailing list

https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Sat Jul 17 07:54:10 2004

Date: Sat 17 Jul 2004 - 07:42:21 EST

On Friday 16 July 2004 16:32, Patrick Lorch wrote:

> Hello all,

*> I am trying to use xyplot to give a six panel plot and to highlight
**> only points (in any panel) that meet a certain criterion. With the
**> plot command I would do something like:
**> plot.default(filein$Site,filein$circ.conc)
**> points(filein$Site,filein$circ.conc,type="p",
**> pch=ifelse(filein$p.value<5e-02,19,21))
**> I had thought I could just stick in the pch line from above into either
**> xyplot or xYplot with groups set to Site like:
**> xyplot(circ.conc~Day|Site,data=allsites.byday,groups=Site,
**> pch=ifelse(allsites.byday$p.value<5e-02,19,21))
**> This does not produce any highlighting (all symbols come out as open
**> circles (19)). I have not messed with writing my own panel functions,
**> though I know that is where the solution must lie. Hopefully someone
**> has an example that is close enough to help me. I can send an example
**> plot to anyone that wants one.
*

It's difficult to check without data, but I believe the following would work:

xyplot(circ.conc ~ Day | Site, data=allsites.byday,

## groups=Site, I don't see the point of this groups = p.value<5e-02, pch = c(19, 21))

Note that I have removed the original groups variable, because I don't see a point in having that (since Site is already used as a conditioning variable). If you really need another grouping variable, then this would become slightly more complicated.

Deepayan

R-help@stat.math.ethz.ch mailing list

https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Sat Jul 17 07:54:10 2004

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