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Re: st: Tokenize local varlist

From   Eric Booth <>
To   "<>" <>
Subject   Re: st: Tokenize local varlist
Date   Tue, 13 Jul 2010 03:46:50 +0000


Use -display- to check the contents of your locals.  Also, notice that local doesn't take a varlist, it takes an expression; so, local doesn't expand the varlist for your line  "local tvars prefix_*" :

sysuse auto, clear
rename mpg prefix_mpg
rename price prefix_price
rename weight prefix_weight
rename foreign prefix_foreign
local tvars prefix_*
di "`tvars'"   //   doesn't work
ds prefix_*
local tvars `r(varlist)'
di "`tvars'"
token `tvars'
di "`1'"
local regressand `1'
mac shift
local regressors `*'
di "`regressors'"
regress `regressand' `regressors'
di "`e(cmdline)'"

~ Eric
Eric A. Booth
Public Policy Research Institute
Texas A&M University
Office: +979.845.6754

On Jul 12, 2010, at 10:32 PM, Dani Tilley wrote:

> local tvars prefix_*
> token `tvars'
> local regressand `1'
> mac shift
> local regressors `*'
> So I try to assign all the variables that begin with "prefix_" to local varlist 
> tvars, and then I tokenize tvars and attempt to assign the first variable to 
> local regressand and the rest to regressors. However, when I -browse `1'- after 
> tokenizing tvars I get all the variables beginning with prefix_ (i.e. all 
> tvars), and after I -ma s- and -browse `*'- I get all the variables in my data 
> set.

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