Re: [R] tri-cube and gaussian weights in loess

2011-02-07 Thread 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 stand

[R] tri-cube and gaussian weights in loess

2011-02-07 Thread 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 -- Vie