[R] Smoothing z-values according to their x, y positions

From: Emmanuel Levy <emmanuel.levy_at_gmail.com>
Date: Wed, 19 Mar 2008 19:42:11 +0000

Dear All,

I'm sure this is not the first time this question comes up but I couldn't find the keywords that would point me out to it - so apologies if this is a re-post.

Basically I've got thousands of points, each depending on three variables: x, y, and z.

if I do a plot(x,y, col=z), I get something very messy.

So I would like to smooth the values of z according to the values of their neighbors (given by x and y).

Could you please point me out to the function(s) I should look into for the smothing, and
possibly for the plotting?

Many thanks for your help,


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