st: is it possible to use local macros to define global macros?

[Benjamin Villena Roldan <benjaminvillena@hotmail.com>]

Hi Statalist,
I'm trying to use several lists of variable names that I want to use in various do files, so in my master do file I define
 
global covar1 x1 x2 x3
global covar2 x4 x5 x6
...
global covar10 x28 x29 x30
 
Then, I want to run regressions in a forvalue loop to use the defined global macros
 
forv a=1/10{
     reg y $covar`a'
}
 
But this approach does not work because the dereferencing operator $ does not include the local macro "a" into the global name.
 
Is there any way I can do this without having to redefine my global macros as local macros in all my do files?
 
Thanks
 
Benjamin


  		 	   		  
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