Re: st: check if a macro contains a value

[Maarten Buis <maartenlbuis@gmail.com>]

On Mon, May 16, 2011 at 4:29 PM, Dimitri Szerman <dimitrijoe@gmail.com> wrote:
> I'm running a big do-file which contains several steps. I would like
> to create a macro (a global, I suppose) which contains the steps which
> are to be run.

This sounds like a job for extended macro functions. Below is an
example that I think does what you want. To learn more about this,
type in Stata -help macro-, click on the link for extended macro
functions. In this case I used the "macro extended functions for
manipulating lists".

*---------------- begin example ------------
global steps "1 2 4"

// step 1
local one "1"
if `: list one in global(steps)' {
	di "step 1"
}


// step 2
local two "2"
if `: list two in global(steps)' {
	di "step 2"
}


// step 3
local three "3"
if `: list three in global(steps)' {
	di "step 3"
}


// step 4
local four "4"
if `: list four in global(steps)' {
	di "step 4"
}
*------------------ end example --------------------
(For more on examples I sent to the Statalist see:
http://www.maartenbuis.nl/example_faq )

Hope this helps,
Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany


http://www.maartenbuis.nl
--------------------------
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