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st: RE: Suggestion for -confirm var- option

From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   st: RE: Suggestion for -confirm var- option
Date   Sun, 14 Mar 2004 17:27:39 -0000

While you're waiting, here's one way round this: 

local v "car" 
unab vs : `v'* 
local exactmatch : list v in vs 

[email protected] 

Kaleb Michaud
> I just spent some time trying to debug a program, when I 
> realized that the 
> -confirm var- command does not require the variable to be 
> spelled out fully.
> For example, suppose you have a program that looks to see if 
> the variable 
> "car" exists.  If it doesn't, it creates or merges it in.  
> But, if I have a 
> variable called cartoon and not car in the data:
> . confirm var car
> gives us _rc == 0 even though the var car doesn't exist and 
> the var cartoon 
> does.  Any way that the Stata powers that be could add an 
> "exact" option 
> such that the varlist that it is confirming must have exact 
> variable syntax 
> provided?  I think this is often an issue when dealing with 
> varlists - I 
> know, just change the var names, but sometime this isn't an option.

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