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


From   peter harper <peterhharper@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   RE: st: RE: multiple responses to a survey question
Date   Mon, 9 Aug 2004 13:23:41 +0100 (BST)

Nick
Thanks. Ordinarily the dummies should and will not sum
to one in a multiple response case. But I was lead to
believe that -mrdum- and -mrtab- would somehow sum the
dummies to 1. 
Thanks
 
 --- Nick Cox <n.j.cox@durham.ac.uk> wrote: 
> 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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