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Re: st: Deleting Characters of a Var Name by index Number


From   "Sergiy Radyakin" <serjradyakin@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Deleting Characters of a Var Name by index Number
Date   Thu, 1 May 2008 16:15:04 -0400

Hello Kyle,

I don't think I understand how you want to transform X42 to X5 based
on your description, but if you'd like to keep two first characters of
the variable names

// begin of file
sysuse auto
ds
local vars `r(varlist)'
foreach var of local vars {
  rename `var' `=substr("`var'",1,2)'
}
// end of file

Hope this helps,
   Sergiy Radyakin


On 5/1/08, Kyle Caswell <caswellk83@hotmail.com> wrote:
> Hello.
>
> I would like to write a macro that renames variables by deleting a specific
> character of a variable name for a group of variables.
>
> For example, suppose that I have variables X31 X42 X53 and so on.   I would
> like to wite a macro that does something like the following:
>
> foreach var of varlist X31 X42 X53{
>   rename `var' = [X and only the second to last character from the *left* of
> `var']
> }
>
> That is, X31 would then be renamed X1 and X42 would be X5 and so on.
>
> I appreciate any tips!
>
> Best,
>
> Kyle
>
> Kyle
>
>
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