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Re: st: a question about local macro


From   Radu Ban <raduban@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: a question about local macro
Date   Fri, 11 Nov 2005 11:53:22 -0500

this is because the local macro is defined in the do-file and NOT in
the current Stata session. so when you try to access the local macro
from the Stata session, Stata doesn't have anything stored in `IC',
hence it evaluates to empty.

-rb

2005/11/11, Jian Zhang <jzh@ucdavis.edu>:
> Hello,
>
> I have a question about the local macro.  I could not figure out why and
> how to get around it.  Hope that you can help me out.
>
> Here is the question.  In my do file, I have two commands as follows:
>
> local IC="IC412 IC413"
> reg y `IC'
>
> The question is that when I run the two commands together
> it works.  But I found that if I then re-run the second command without
> running the first command,  I thought it should give the same results
> since i have already defined the local macro, so I do not need to
> redefine it.  It turns out that this time stata treated `IC' as empty.
> That means if I want to run the second command,  i always need to run the
> two commands together.  Am I correct?  Any explanations? Is there anyway
> to get around this?
> Thanks!
>
> Best,
>
> Jian Zhang
>
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