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RE: st: RE: Executing a string representation of a command


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: Executing a string representation of a command
Date   Mon, 17 Nov 2008 15:44:36 -0000

Stata programming is based in quite large part on such tricks, including
multiple nesting of macros! 

Nick 
n.j.cox@durham.ac.uk 

E. Paul Wileyto

Thanks.  It's harder in Matlab, and I assumed it would be similar here.

Nick Cox wrote:

> You just refer to it: 
>
> At the command prompt: 
>
> . `vL' 
>
> In a do-file 
>
> `vL' 
>
> The point is that Stata sees the macroname and replaces it by its
> contents. Then it is evident that -label- (in this case) has some work
> to do. 

E. Paul Wileyto

> Suppose I've done some programming that creates a macro containing a 
> string representation of a command.  For example:
>
> . ma list vL
> vL:             label var EMOID_OA_CR_plac "Emotion ID, Overall
Correct 
> Response Count, On Placebo."
>
> How do I now execute that string in a macro as if I had type it in, or

> had written it explicitly as part of a do-file?
>
> If I search on "execute string" in help, there is no response.

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