On the first issue, there's a recent post you can find in the archives.
It's from Deepayan Sarkar on January 2 this year. It would probably pop up
on a search for "black white lattice" or something similar.
The key part of his answer:
I'd do something like this as part of the initialization:
<<...>>
library(lattice)
ltheme <- canonical.theme(color = FALSE) ## in-built B&W theme
ltheme$strip.background$col <- "transparent" ## change strip bg
lattice.options(default.theme = ltheme) ## set as default
Hope this helps,
Matt Wiener
-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Dean Sonneborn
Sent: Thursday, February 03, 2005 2:53 PM
To: R-help at stat.math.ethz.ch
Subject: [R] two issues
I'm working on a graphic but have run into a road block about two
issues. I don't have a color printer so I want to produce the graphic in
black and white. I'm currently using this
statement trellis.device(bg="white") but the body of the graphic
contains
color. What is the code to create the whole thing in black and white. The
other issue might be a bit more tricky. I'm using this statement:
auto.key=TRUE and in the body of the graphic I'm getting two different
symbols and on the screen I see two symbols in the key but when I print it
the key only contains one symbol for both!
here's the whole R code statement:
dotplot(chemical~adjlogmle| convert*tdnew, data=allrisk , group=rodentx,
main="Interspecies Conversion", pch=1:2, auto.key=TRUE, scales =
list(tick.number=10), fontfamily = "HersheySans")
Thanks,
Dean Sonneborn M.S.
Public Health Sciences *
University of California, Davis
916 734-6656
* formerly Epidemiology & Preventive Medicine
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