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Re: st: how to rename a set of variables using foreach


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: how to rename a set of variables using foreach
Date   Sun, 5 Feb 2012 12:18:31 +0000

By string commands I imagine you mean string functions (an important
difference).

Statalist protocol is that you are assumed to be using Stata 12.1
unless you specify otherwise.
That being so, -help rename- is in principle the place to start.

But the main problem here is that when you start renaming  -inccatd1-
is already a name in use and every renaming command known to me
(including -renvars-, SJ) will fail without an extra trick. This
should work

renpfix inccat fooinccat
renvars fooinccat1-fooinccat14 \ inccat3-inccat12

and there will be a -rename- alternative in Stata 12.1 except that at
this minute I can't test it.

Nick

Ekaterina Hertog <ekaterina.hertog@sociology.ox.ac.uk> wrote:
,
> I have a dataset with several dummy variables for income categories named:
>
> inccatd1 inccatd2 inccatd3 inccatd4 inccatd5 etc till inccatd14
>
> and I'd like to go 2 steps down in the numbers of income categories: i.e. I
> want inccatd3 to become inccatd1 etc.
>  and I cannot quite figure out whether I can do it with foreach or not and
> all the advice I found so far is on using string commands.

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