Re: st: MAKTAB for svy estimation

[Nick Winter <nw53@cornell.edu>]

Hi,

Glad to hear my -mktab- continues to get some use.

Although the syntax implied below might make some sense, the way -mktab- 
deals with options for the underlying estimation command is by having them 
appended to the mktab command itself, not to the individual equation 
specifications.  See -whelp mktab-.

So the first example would be:

.  mktab (y x1 x2), cmd(svyprobit) log(mylog, replace) subpop(elig1)

Any option that is not a valid -mktab- option is simply appended to the 
estimation command.

(I note that the implied syntax would allow more flexibility, because there 
is no way to specify different options across different equations as things 
stand now; it would also probably be cleaner to implement multiple if 
conditions similarly, rather than the rather oddly designed mif() option, 
which was constructed to deal with my very specific initial needs...if I 
ever revisit the command I'll probably make those changes.)

As for the second question, I don't think that -mktab- can be made to play 
well with -xi-.  The only option would be to run -xi- first, then specify 
the various interaction variables manually.  Something like

  . xi i.x1
  . mktab (y _Ix1* x2) , cmd(svyprobit) subpop(elig1) log(mylog, replace)

--Nick Winter


At 04:42 PM 3/29/2005 -0500, you wrote:

> I guess this question is for Nick Winter.
>
> How can I specify subpop in the MAKTAB syntax?
>
> For example, when I type
> . mktab (y x1 x2, subpop(elig1)), cmd(svyprobit) log(mylog, replace)
>
> STATA gives an error message, saying
> subpop() invalid
> r(198);
>
> Another question is: how do I use XI option in MAKTAB, say, x1 is a
> categorical variable, shall I type
>
> . mktab (y i.x1 x2, subpop(elig1)), cmd(xi: svyprobit) log(mylog, replace)??
>
> Thanks,
>
> Wenhui
>
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--------------------------------------------------------
Nicholas Winter                           607.255.8819 t
Assistant Professor                       607.255.4530 f
Department of Government              nw53@cornell.edu e
308 White Hall            falcon.arts.cornell.edu/nw53 w
Cornell University
Ithaca, NY 14853-4601 

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