On Mar 24, 2011, at 1:37 PM, JP wrote:
Using Trellis, am successfully setting up a number of panels (25) in
which I
have two box and violin plots.
I would like to colour - one plot as RED and the other as BLUE (in
each
panel). I can do that with the box plots, but the violin density
areas just
take on one colour.
My basic call is as follows:
I took the suggestion of Sarkar's:
http://finzi.psych.upenn.edu/Rhelp10/2010-April/234191.html
Identified with a search on: " panel.violin color"
.... a bit of trial and error with a re-worked copy of the `singer`
data.frame meant I encountered errors and needed to throw out some of
your pch arguments, and suggest this reworking of your code:
bwplot(rmsd ~ file , groups= code,
data=spread_data.filtered, col = c("red", "blue"),
panel=panel.superpose,
panel.groups = function(..., box.ratio){
panel.violin(..., cut = 1, varwidth = FALSE,
box.ratio = box.ratio)
panel.bwplot(..., box.ratio = .1)
},
par.settings = list(plot.symbol = list(pch = 21, col = "gray"),
box.rectangle = list(col = "black"), # not sure these are
working properly
box.umbrella = list(col = "black"))
)
Obviously it cannot be tested without some data, but I did get
alternating colors to the violin plots. There is an modifyList
functionthat you might want to look up in the archives for changing
par.settings:
http://search.r-project.org/cgi-bin/namazu.cgi?query=par.settings+modifyList&max=100&result=normal&sort=score&idxname=functions&idxname=Rhelp08&idxname=Rhelp10&idxname=Rhelp02
--
David Winsemius, MD
West Hartford, CT
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