On Apr 22, 2010, at 4:52 PM, Bert Gunter wrote:
" Must one compose a panel function?"
Depending on what you want exactly, no. Add the argument
type="g"
to your call.
(e.g.
densityplot(~fallrates, groups = prepost,type="g",...
)
See ?panel.xyplot and recall that lattice passes down arguments
that it
does not know what to do with to the panel function.
I found that type="g" interfered with execution of the ,,,
plot.points=TRUE, ... directive and got better success with ... ,
type=c("p", "g")
--
David.
Bert Gunter
Genentech Nonclinical Biostatistics
-----Original Message-----
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org
] On
Behalf Of Giles
Sent: Thursday, April 22, 2010 1:31 PM
To: r-help@r-project.org
Subject: [R] How to insert gridlines in lattice density plot
Greetings.
How can I insert gridlines
in the following density plot call?
Must one compose a panel function?
'data.frame': 46 obs. of 2 variables:
$ fallrates: num 5.2 7.1 7.1 9.8 3.7 7.5 5 6.2 1.5 2.9 ...
$ prepost : Factor w/ 2 levels "post","pre": 2 2 2 2 2 2 2 2 2 2 ...
library(lattice)
densityplot(~fallrates, groups = prepost,
kernal="triangular", lwd=2,
plot.points = TRUE, ref = TRUE, auto.key = list(columns = 2),
main="Estimated fall rate density, pre and post intevention")
Thank you for your consideration and comments.
Giles Crane
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______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD
West Hartford, CT
______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
