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st: AW: Dropping var from log reg due to estimability


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: AW: Dropping var from log reg due to estimability
Date   Mon, 2 Mar 2009 09:10:28 +0100

<> 


Do these variables vary within the estimation sample? See
http://www.stata.com/statalist/archive/2008-08/msg01091.html




HTH
Martin

-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Ziad El-Khatib
Gesendet: Montag, 2. März 2009 08:32
An: statalist@hsphsun2.harvard.edu
Betreff: st: Dropping var from log reg due to estimability

Hi!
Using -stepwise, pr(.20): logistic- I ran different variables (all of
them and dependent variables were dichotomous); got the text below
then got the rest in the model. Any tips what does estimability mean?


note: incomenone dropped because of estimability
note: awaycat dropped because of estimability
note: busycat dropped because of estimability
note: elsetoseecat dropped because of estimability
note: dailyroutinecat dropped because of estimability
note: depressedcat dropped because of estimability
note: othercat dropped because of estimability
note: incomeself dropped because of estimability
note: 42 obs. dropped because of estimability



Thank you and best regards
ziad
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