Hi,
it is identifiable via -findit-. I made a mistake in the earlier mail, it is wls0, where the "0" is a zero.
Best
Phil
-------- Original-Nachricht --------
> Datum: Fri, 20 Feb 2009 11:50:05 -0000
> Von: "Nick Cox" <[email protected]>
> An: [email protected]
> Betreff: st: RE: Weighted Least Squares - wls0
> This refers to a -wsl0- command which is not part of official Stata and
> not identifiable via -findit-.
>
> Nick
> [email protected]
>
> [email protected]
>
> I have a problem with weighted least squares where I cannot find a
> solution to. I use the wsl0 command to obtain the results; however,
> there are two things I am confused about:
>
> First, for some reason STATA drops observations when I use certain
> weight types. STATA does not give any documentation about this; however,
> the number of observations is significantly lower according to the
> output table. Does anybody has an idea why STATA does that?
>
> Second, when I use squared fitted values (xb2) as weighting type, I get
> the same fitted value vs. residual plot independent of the variable(s) I
> weight proportionally to. Is this normal?
>
> I would appreciate any help,
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
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*
* For searches and help try:
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* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
