hmmm... in response to John's earlier request I cobbled a simple example
but that seems to work; either there's a strange error in the more
complex version or my misunderstanding of color maps is messing with me.
Anyway, for the record, here's an example of what I want to do (that
actually see
I have 2 float arrays of the same dimension which I use to generate a
3rd array, again of the same dimension, containing integers from a small
set (I obtain the 3rd array via clustering in the 2 dimensional space of
points obtained as values from the same location in the initial 2
arrays). I'd