[R] kernel smooth for tw-dimensional data

From: Patrick Wang <pwang_at_berkeley.edu>
Date: Tue, 05 Jun 2007 18:59:46 -0700 (PDT)


Hi all:

I can use the density() function to get the kernel density for given observed data X with bandwidth.

Is there a function in R that can take in two dimensional data(x, y) and return a joint density based
on the bandwidth. Do I need to provide bandwith for x and then for y?

Is the GRASS package
kde2d.G(x, y, h, G, reverse=reverse(G))

provide such function?

Thanks
pat



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