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RE: st: RE: multiple responses to a survey question


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: multiple responses to a survey question
Date   Mon, 9 Aug 2004 12:43:49 +0100

The help file for -mrdum- (a user-written 
program by Lee Sieswerda) explains its 
syntax. The syntax for its -stub()- option 
is that you must supply an argument. Just 
specifying -stub- is illegal (and useless
anyway). 

I am not sure that you can always 
obtain dummies for multiple responses 
which sum to 1. It depends on your data 
structure. If I answer "yes" to 
"use Stata" and "yes" to "use R" _and_ 
those are separate variables, then 
dummies for me will add to 2. This 
is the whole point of the multiple 
responses problem, is it not? 

Nick 
n.j.cox@durham.ac.uk 

peter harper
> 
> Nick
> Thanks for your reply. I am new at usimg -mrtab- and
> -mrdum- . May I ask for example, -stub(q4) precisely
> means. I did look at their help for these things, but
> it was not clear to me. Perhaps I have overlooked
> something.
> I wanted to find out how to generate dummy variables
> of multiple responses which will sum to 1. then obtain
> means and standard deviations.
> Thanks
> 
>  --- Nick Cox <n.j.cox@durham.ac.uk> wrote: 
> > Both the error message and the help for -mrdum- tell
> > you 
> > what is required, an argument for the -stub()-
> > option, 
> > e.g. -stub(q4)- not -stub-. 
> > 
> > Nick 
> > n.j.cox@durham.ac.uk 
> > 
> > peter harper
> >  
> > > dummy variables for multiple responses to a survey
> > > question. I have tried -mrtab-
> > > I have tried
> > > .mrdum x1 x2 x3, stub
> > > option stub() required
> > > 
> > > This is the message I got. Can anyone please tell
> > me
> > > what is precisely required here.
> > 

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