[R] bivariate weighted kernel density estimator

[Adelchi Azzalini]

On Sun, 23 Apr 2006 09:13:35 +0200, Erich Neuwirth wrote:

EN> Is there code for bivariate kernel density estimation?
EN> For bivariate kernels there is
EN> kde2d in MASS
EN> kde2d.g in GRASS
EN> KernSur in GenKern
EN> (list probably incomplete)
EN> but none of them seems to accept a weight parameter
EN> (like density does since R 2.2.0)
EN> 

sm.density of package sm allows to use weights 
(with Gaussian kernel)

best wishes,
Adelchi Azzalini

-- 
Adelchi Azzalini  <azzalini at stat.unipd.it>
Dipart.Scienze Statistiche, Università di Padova, Italia
tel. +39 049 8274147,  http://azzalini.stat.unipd.it/