On Mon, 28 Apr 2008, Graham Smith wrote:
With help from Marcelino. I have produced a smoothed surface plot of
water depths (depths as marks) in spatstat, but the default colours
are oranges and reds. How do I change these to blues.
Can I redifne the colours in terrain.colors() or topo.colors(), or do
I need to use rainbow(). Or is its something different all together.
They are built-in, don't try to change them. Look at ?colorRampPalette and
at ?brewer.pal in RColorBrewer, I guess that something like:
library(RColorBrewer)
bl5 <- brewer.pal(5, "Blues")
mypal <- colorRampPalette(bl5)
then use mypal(n) to get n blues. You may need rev(bl5) to get them the
other way.
Roger
I have tried the options I listed above , but can't get a syntax that
works, and haven't found the help any help at all (not for me anyway).
Can anyone help.
Many thanks,
Graham
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--
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: [EMAIL PROTECTED]
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