Dear useRs,
When I use coplot() and output to png/jpeg/bmp, the grid lines from
the scatter plots disappear. If I output to pdf() the grid lines are
there, however I can't use it - I have many points, and the resulting
PDF file is large and very slow to open and scroll through. (By the
way, if I click File-Save As-png/jpeg/bmp from Rgui.exe, the grid
lines are preserved - but I need to use code.)
With coplot(), is there a way to:
1. Keep the grid lines in the scatter plots when exporting output to
png(), and perhaps change their color?
2. Specify the number of grid lines to be drawn on the x and y axes?
I'm running R 2.0.0 on Win XP.
Thank you,
b.
a <- rnorm(50000)
b <- rnorm(50000)
c <- rnorm(50000)
#pdf("test.pdf",height=9,width=12)
png("test.png",height=900,width=1200)
coplot(a ~ b | c,pch=20,col="navy",
bar.bg=c(num=gray(0.8),fac=grey(0.95)))
dev.off()
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