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RE: st: a question about local macro


From   "Jian Zhang" <jzh@ucdavis.edu>
To   adiallo5@worldbank.org, statalist@hsphsun2.harvard.edu
Subject   RE: st: a question about local macro
Date   Sun, 13 Nov 2005 08:36:39 -0800 (PST)

Thanks, Amadou, Nick, Radu and Maarten! Your emails really helped me
understand local macros more!

Jian



> Jian,
> 
> 
> You need global.
> 
> 
> Remember, if you run a dofile with a local,
> 
> 
> and then rerun only a portion of your dofile,
> 
> 
> stata will "forget" the local (it assumes its
> 
> 
> a new dofile session).
> 
> 
> HTHs.
> 
> 
> Amadou.
> 
> 
> 
> 
> 
> Jian Zhang wrote:
> 
> 
> 
> 
> 
> 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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