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Re: st: Re: dummy table - follow up


From   John Bunge <[email protected]>
To   [email protected]
Subject   Re: st: Re: dummy table - follow up
Date   Sat, 21 Feb 2009 13:23:06 +0100

maybe the way it comes over the list is not obvious but please have a look here:

http://www.hsph.harvard.edu/cgi-bin/lwgate/STATALIST/archives/statalist.0902/date/article-950.html

a, id1  >  ad1, id1
a, id1  >  ad2, id1
a, id1  >  ad3, id1
a, id2  >  ad3, id2
a, id2  >  ad4, id2

etc...

the same principle w/ b



> <>
> 
> Well, tell the list how this second matrix comes into being. How does it 
> follow from the first one?
> 
> HTH
> Martin
> _______________________
> ----- Original Message ----- 
> From: "John Bunge" <[email protected]>
> To: <[email protected]>
> Sent: Saturday, February 21, 2009 4:17 AM
> Subject: st: dummy table - follow up
> 
> 
> > Dear all,
> >
> >
> > now i would like to modify
> >
> > id a b d1 d2 d3 d4
> > 1 1 3 1 0 0 0
> > 1 2 15 0 1 0 0
> > 1 2 40 0 0 1 0
> > 2 1 35 0 0 1 0
> > 2 2 120 0 0 0 1
> > 3 3 10 0 1 0 0
> > 3 1 55 0 0 1 0
> > 3 1 130 0 0 0 1
> > 4 4 2 1 0 0 0
> > 4 1 38 0 0 1 0
> >
> >
> > to
> >
> > id d1x d2x d3x d4x ad1 ad2 ad3 ad4 bd1 bd2 bd3 bd4
> > 1 1 1 1 0 1 2 3 . 3 15 40 .
> > 2 0 0 1 1 . . 1 2 . . 35 120
> > 3 0 1 1 1 . 3 1 1 . 10 55 130
> > 4 1 0 1 0 4 . 1 . 2 . 38 .
> >
> >
> > Thanks to some comments over this list I know how to create d1x - d4x. The 
> > additional stuff I am not sure how to do is ad1 - bd4.
> >
> >
> >
> >
> > ____________________________________________________________________
> > Psssst! Schon vom neuen WEB.DE MultiMessenger gehört?
> > Der kann`s mit allen: http://www.produkte.web.de/messenger/?did=3123
> >
> >
> > *
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> > *   http://www.ats.ucla.edu/stat/stata/
> > 
> 
> *
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> 


____________________________________________________________________
Psssst! Schon vom neuen WEB.DE MultiMessenger gehört? 
Der kann`s mit allen: http://www.produkte.web.de/messenger/?did=3123


*
*   For searches and help try:
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*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



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