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Re: st: looping to rename variable names


From   Steve Nakoneshny <scnakone@ucalgary.ca>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: looping to rename variable names
Date   Thu, 2 Aug 2012 20:02:03 -0600

Kate,

Rather than use a loop, it would be far more effective to simply use -rename-. See the extensive examples available in -help rename-.

If you happen to not be using Stata 12, -renvars- (SCC) would suit here as well.

Lastly, it's Stata, not STATA. Please read the FAQ for further details on this point.

Steve

Sent via carrier pigeon

On 2012-08-02, at 7:42 PM, "Kate Xu" <man.k.xu@gmail.com> wrote:

> Hi All,
> 
> I would like to program a loop in STATA to change the name a long list
> of variables ending with "_" and a letter, like these:
> 
> ab1535_a
> ab32343_b
> ab089790_g
> ab3434_t
> ...........
> 
> I want to change them into
> 
> ab1535
> ab32343
> ab089790
> ab3434
> ...........
> 
> I can use
> ds ab*_*
> local oldname `r(varlist)'
> 
> for each foreach i of local oldname {
> rename `i' ????
> }
> 
> I don't know how to complete this loop, Is there a way to program this please?
> 
> Thanks a lot!
> 
> Kate
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