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st: RE: question about labelling


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: question about labelling
Date   Thu, 27 Feb 2003 18:03:02 -0000

Radu Ban
> 
> I have a lot of variables of the type
> 
> xyz101 xyz105 xyz211...
> 
> and I want to label them like this:
> 
> label var xyz101 "[description] 101"
> 
> 
> I would like to know whether I can speed up this labelling 
> process, since
> I have over a hundred of these variables.
> I tried the following piece of code:
> 
> foreach `name' of varlist xyz* {
> 	local code = substr(`name', -3, .)
> 	label var `name' `"indigineous input # `code'"'
> 	}
> 
> but it gives me a type mismatch, which makes me believe 
> -substr- is trying
> to extract the string out of the variable itself not its 
> name. Can anyone
> point the way oout?
> 

You have your finger on the main issue. Try 

foreach name of varlist xyz* { 
	local code = substr("`name'", -3,3) 
	label var `name' "indigenous input # `code'"
} 

That is, you want to work on the text string 
which is the name, not the contents of the variable 
it names. Note also the distinction between 

name 

and 

`name' 

and a spelling fix. 

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

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