Hi
Here is my sessionInfo():
Version 2.3.1 (2006-06-01)
i686-redhat-linux-gnu
attached base packages:
[1] "methods" "stats" "graphics" "grDevices" "utils"
"datasets"
[7] "base"
I have a function that is trying to draw rectangles using 136 different
colours, and I get the following error:
Error in rect(xstart, my.min, xstart + fcount[i, 2], my.max, col =
fcolors[i], :
Error: X11 cannot allocate additional graphics colours.
Consider using X11 with colortype="pseudo.cube" or "gray".
However, if I use "pseudo.cube" I don't get anywhere near enough
distinct colours. I could use gray, but I would prefer colour. So,
questions:
1) is there any set of options I can use which will actually let me
create that many colours?
2) if not, how do I test if there is not, and implement gray instead of
colours? This function and package works on windows, and it works with
less colours. I guess I could try and trap the error, and if I can, go
back and re-run the function with "options(X11colortype="gray")" but I'd
prefer something more elegant... What I'm looking for is some test where
I can say "If you're going to fail, X11colortype='gray', else
X11colortype='true'". Possible?
Many thanks
Mick
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