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Re: st: RE: Macro questions. (Again).


From   David Kantor <dkantor@jhu.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Macro questions. (Again).
Date   Wed, 11 Aug 2004 10:12:13 -0400

Amadou wrote:

At 08:27 AM 8/11/2004 -0400, you wrote:
Nick,
When I talk about working inside macros, I am thinking of something
like this:
I know that one can increment a macro by doing: local myvars "`myvars' var1"
But why can't we REMOVE var1 from the macro myvars?
Something like (it's just an example, but maybe you have another syntax):

local myvars "`myvars' , -var1"

(where -var1 is intented to tell Stata to remove var1 from myvars).
[...]
You should check -help macrolists-, in particular, you would want...
 local toremove "var1"
 local myvars: list myvars - toremove

to do what you meant by...
 local myvars "`myvars' , -var1"

You could also use a separate name, if you prefer:
 local mynewvars: list myvars - toremove

But do see -help macrolists- for a large set of macro list operations.

I hope this helps.
-- David


David Kantor
Institute for Policy Studies
Johns Hopkins University
dkantor@jhu.edu
410-516-5404

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