Thanks for the reply. I should have stated my question more clearly, though. I can see how to compute the density in a window around a single position, but I need to compute the density at each of a set of regular positions. I'm using Grid to obtain the regular positions. Do I have to loop through the positions explicitly? Is there a way to do this _without_ loops? I've looked at modules like Sample, Regrid, Map, etc., but to no avail.
Thanks again! Joel =============================================================== Joel Richardson, Ph.D. [EMAIL PROTECTED] The Jackson Laboratory Phone: (207) 288-6435 600 Main Street Fax: (207) 288-6132 Bar Harbor, Maine 04609 URL: www.informatics.jax.org ===============================================================
