On Aug 6, 2010, at 10:24 AM, W Eryk Wolski wrote:
Hi,
Would like to make an image
however the values in z are not on an uniform grid.
Have a dataset with
length(x) == length(y) == length(z)
x[1],y[1] gives the position of z[1]
and would like to encode value of z by a color.
looking for something like
plot(x,y, col = z)
where col for z is cleverly chosen from a colorscale.
?palette
??palette # for other coloring options
?colorRamp
# random integer index from default palette for coloring of random x,y
points:
plot(rnorm(20), rnorm(20), col=palette()[ runif(20, 1,10) ] )
# The cleverness is left to you.
--
David Winsemius, MD
West Hartford, CT
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