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Re: st: command option in ado programming


From   Nick Winter <nw53@cornell.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: command option in ado programming
Date   Mon, 17 Nov 2003 15:14:23 -0500

Take a look at this FAQ:

http://www.stata.com/support/faqs/lang/syntax.html

"Option 3" can be implemented as:

syntax [, TRanslog1 TRanslog2(string)]

(assuming you want "TR" to be a valid abbreviation for translog. Then, if the user specifies just

mymodel y x1 x2, translog

then the local macro `translog1' will be non-blank.

If they use it as a string, then `translog2' will contain whatever they typed.

-Nick Winter

At 11:24 AM 11/17/2003 -0800, you wrote:

Dear listers,

I want to write an estimation command called "mymodel" for which I
want all of the following syntax permissible:

 (1) mymodel y x1 x2, translog
 (2) mymodel y x1 x2, translog()
 (3) mymodel y x1 x2, translog(homogeneous)

where (1) and (2) estimate the same model, and (3) estimates a
different model.

I know how to make (2) and (3) work:

   syntax varlist [if] [in], TRANSLOG(string)

, but I don't know how to make (1) work side-by-side with (2) and
(3). Any suggestion will be appreciated!

Eddy


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