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st: RE: Problem with tempvar __000000 (still confused)

From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   st: RE: Problem with tempvar __000000 (still confused)
Date   Thu, 24 Jun 2004 11:10:38 +0100

Be very careful here. 

Temporary variables have names like __000000. 

That "__" is _two_ underscore characters. Depending
on the font you are using, it may look like a single

If you 

drop _* 

you will drop any temporary variables that should have
been dropped but also any variables that begin with 
a _single_ underscore. Lots of official programs, 
some unofficial programs and no doubt some do files 
create such variables. Dropping them could lose you 
valuable information. 

[email protected] 

> I have 6 programs I used since years and I got also the new 
> error message 
> with  "_000000 already exists " and so on. I finally add the 
> following line 
> at the end of the programs which causes "_0000" message :
> capt drop _*
> The error came only since the new verstion of stata (18/5/04)

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