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st: RE: weighting for Lowess smoothing

From   "Nick Cox" <>
To   <>
Subject   st: RE: weighting for Lowess smoothing
Date   Tue, 2 May 2006 16:00:15 +0100

-lowess- doesn't allow weights. Apart from programming
this yourself, I guess your only option is to -expand- 
beforehand. Assuming that community size is an 
integer, then this in some cases might lead to problems
with dataset size, especially if the communities are e.g. 
ants or other social insects.


Yoshiro Nagao
> I am thinking of using Lowess smoothing
> for such a dataset in which
> each data-point corresponds to one community.
> Since different communities differ in 
> population size,
> they should be weighted, as I suppose, 
> according to their size.
> How is this possible in Stata?
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