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st: Re: How to find out whether a variable is a dummy variable ?


From   Friedrich Huebler <huebler@rocketmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Re: How to find out whether a variable is a dummy variable ?
Date   Tue, 2 Aug 2005 10:08:43 -0700 (PDT)

Thomas,

You didn't show us your code but from your description it looks like
you would miss dummies where all observations are either 0 or 1.

Friedrich

--- Thomas Cornelißen <cornelissen@mbox.iqw.uni-hannover.de> wrote:
> I suppose I found a way myself combining
> 
> -sum- to check whether the minimum is 0 and the maximum is 1
> 
> and
> 
> -distinct- (if installed) to check whether there are only two
> distinct 
> values.
> 
> ----- Original Message ----- 
> From: "Thomas Cornelißen" <cornelissen@mbox.iqw.uni-hannover.de>
> To: "statalist" <statalist@hsphsun2.harvard.edu>
> Sent: Tuesday, August 02, 2005 5:24 PM
> Subject: st: How to find out whether a variable is a dummy variable
> ?
> 
> > Is there a programmer's command to find out whether a variable is
> a dummy 
> > variable  ?
> > I need it because all dummy variables in my program are to be
> treated 
> > differently from continuous variables.
> >
> > Thanks for any comments,
> > Thomas
> > cornelissen@mbox.iqw.uni-hannover.de


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