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AW: st: Tokenize local varlist


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   AW: st: Tokenize local varlist
Date   Tue, 13 Jul 2010 09:01:52 +0200

<> 

" Use -display- to check the contents of your locals.  "


Or indeed use -macro dir- to see them all at once...




HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Eric Booth
Gesendet: Dienstag, 13. Juli 2010 05:47
An: <statalist@hsphsun2.harvard.edu>
Betreff: Re: st: Tokenize local varlist

<>

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
ebooth@ppri.tamu.edu
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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