st: Re: problem with a list returned by stata (r(varlist))

["Sergiy Radyakin" <Radyakin@aoek.uni-hannover.de>]

Hi Valerie,

by adding another pair of  ` ' in your second -local- statement you ask 
Stata to evaluate the list and assign the value to the macro. The evaluated 
list will be exactly what you see on the screen. The numbers are the values 
of the variables of liste1 for observation 1. Similarly you can
di VolBR4 /*or any other variable */
You must see the first observation in VolBR4!

Regards,
  Sergiy




----- Original Message ----- 
From: "Val�rie Orozco" <Valerie.Orozco@toulouse.inra.fr>
To: <statalist@hsphsun2.harvard.edu>
Sent: Friday, February 23, 2007 1:44 PM
Subject: st: problem with a list returned by stata (r(varlist))



> Hello,
>
> What I want to do is to store lists (in a macro) of some variables in my 
> data.
> I use the command "ds" to have them and I thought that thanks to the 
> return list r(varlist) I would be able to play with this in my program 
> (make some differences and others manipulations of macrolists)...but ir 
> doesn't work...
>
> My example is the following :
>
> ds Vol*      /*I want Stata to show me all the variables beginning by 
> "Vol" in my data*/
> local liste1 `r(varlist)'   /*I put it in a local list*/
> di "`liste1'"          /*to test it : it woks*/
> local liste1bis `"`liste1'"'  di `liste1bis'         /*and it is a funny 
> result*/
>
> ds Vol*
> VolBR4_seg0   VolBR1        VolBR5        VolBR9        VolMN3 
> VolMR5        VolS01MN1    VolS01MN5
> Vol0BR4_seg0  VolBR2        VolBR6        VolMN1        VolMN5 
> VolMR3        VolS01MN2     VolS01BR4
> VolBR4_seg1   VolBR3        VolBR7        VolMN2        VolMR1 
> VolMR4        VolS01MN3
> Vol0BR4_seg1  VolBR4        VolBR8        VolMN4        VolMR2 
> Volmois       VolS01MN4
>
> . local liste1 `r(varlist)'
>
> . di "`liste1'"
> VolBR4_seg0 Vol0BR4_seg0 VolBR4_seg1 Vol0BR4_seg1 VolBR1 VolBR2 VolBR3 
> VolBR4 VolBR5 VolBR6 VolBR7 VolBR8 VolBR9 VolMN1
> >  VolMN2 VolMN4 VolMN3 VolMN5 VolMR1 VolMR2 VolMR5 VolMR3 VolMR4
> Volmois VolS01MN1 VolS01MN2 VolS01MN3 VolS01MN4 VolS0
> > 1MN5 VolS01BR4
>
> . local liste1bis `"`liste1'"'
>
> . di `liste1bis'
> 133008.88133008.8850295.1650295.1621709.86553108.0783532.6653183304.05706.5600625242.53178350.60974817.94556640.7429417 
> 9.91461350.7854565.400414064.5413353.52565.5650.400002...262361.2294179.91461350.78514064.5414565.40043353.52183304.05
>
> It seems that strings in a list returned by the "return list" command are 
> coded...very stranged, isn't it?
> If someone has an idea...
>
> thank you very much for trying to help me
>
>
> --
>
> ***********************
> Val�rie Orozco
> INRA ESR Toulouse
> ESR INRA - BP52627 - 31326 Castanet Tolosan Cedex FRANCE
> orozco@toulouse.inra.fr
> 05-61-28-50-97
> ***********************
>
>
>
>
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