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st: RE: question about ds command

From   "Nick Cox" <>
To   <>
Subject   st: RE: question about ds command
Date   Wed, 12 May 2010 20:48:11 +0100

This is nothing to do with -ds-. 

It is the problem discussed yesterday in 


Namely, the = sign in your assignment truncates the macro as a
side-effect. See the above posting for references discussing the problem
in nauseating detail. 

For your problem, there is a very direct alternative. 

unab a : *_test 

(Note that unlike -levelsof-, -ds- does not have a -local()- option. But
-findname- from SSC, which is a user-written revision of -ds-, does. But
for this question, -unab- is far more direct than -findname-, or indeed


Dr. Bill Westman

I have a question on the function of ds related to the following:

forvalues x = 1/50 {
g q_`x'_test = 1
ds *_test
** displays the list of q_1_test - q_50_test perfectly **
local a = r(varlist)
disp "`a'"
** DOES NOT Contain all variables.  list is truncated after q_25_test q_

I'd like to accomplish putting a long list of variables with using "*_"
into a local macro (e.g., everything with that has the suffix _test).

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