Re: st: index-scrolling varname

[Nick Winter <nw53@cornell.edu>]

The answer here might depend in part on the actual structure of your 
variable names, but basically you want to deal with local macros.  In 
general, see -whelp local- and/or the User's Guide on macros; and -help 
foreach-.

Specifically, something like:

  foreach i in a b c {
    egen sum_`i' = rsum(`i'_first `i'_second)
  }


something like this would do it


At 08:01 PM 4/5/2005 +0200, you wrote:

> I've to do a lot of computation on some groups of variables.
> For simplicity, let's say I've to do rsum(a_first a_second) and, separetely,
> rsum(b_first b_second)
>
> I want to do it shorter using a loop:
> - I generated a sort of index, let's say i, whose values is i="a" the first
> turn, and i="b" at the second turn (and that's feasible)
> - I would like to do something like:
>   egen i_tot=rsum(i_first i_second)
>
> but I'm not able to explain to Stata that I'm interested in the value of i 
> as a
> part of the variable name.
> Is it possible to do that?
>
> --
> Sara Pinoli
> Ph.D. Student - Universit� Bocconi
> Via Sarfatti 25 - 20136 Milano, Italy
>
> Email: sara.pinoli@phd.uni-bocconi.it
>
>
>
>
>
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--------------------------------------------------------
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