[R] tri-cube and gaussian weights in loess

[Liaw, Andy]

Locfit() in the locfit package has a slightly more modern implementation of loess, and is much more flexible in that it has a lot of options to tweak.  One such option is the kernel.  There are seven to choose from.

Andy 

From: wisdomtooth
> 
> >From what I understand, loess in R uses the standard 
> tri-cube function.
> SAS/INSIGHT offers loess with Gaussian weights. Is there a 
> function in R
> that does the same?
> 
> Also, can anyone offer any references comparing properties 
> between tri-cube
> and Gaussian weights in LOESS?
> 
> Thanks. - André
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