[S] bandwidth and neighbourhood size for Kernel smoother

=?iso-8859-1?Q?=22Ejrn=E6s=2C_Rasmus=22?= (rej@DMU.dk)
Sat, 18 Apr 1998 13:52:46 +0200


Dear S-plussers

I am doing kernel smoothening of presence-absence data of vascular
plants along a pH-gradient using FUN=ksmooth, kernel="triangle" and
bandwidth=1. I would like to know the neihgbourhood size used in the
smoothening.

I find it difficult to understand the short explanations about the
bandwidth parameter in the ksmooth function given in the manuals and
help menu. Can I infer the neighbourhood size from the bandwidth
parameter?

Regards

Rasmus
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