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From |
Nick Winter <nw53@cornell.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: index-scrolling varname |

Date |
Tue, 05 Apr 2005 14:54:02 -0400 |

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 - Università Bocconi

Via Sarfatti 25 - 20136 Milano, Italy

Email: sara.pinoli@phd.uni-bocconi.it

*

* For searches and help try:

* http://www.stata.com/support/faqs/res/findit.html

* http://www.stata.com/support/statalist/faq

* http://www.ats.ucla.edu/stat/stata/

Nicholas Winter 607.255.8819 t

Assistant Professor 607.255.4530 f

Department of Government nw53@cornell.edu e

308 White Hall falcon.arts.cornell.edu/nw53 w

Cornell University

Ithaca, NY 14853-4601

*

* For searches and help try:

* http://www.stata.com/support/faqs/res/findit.html

* http://www.stata.com/support/statalist/faq

* http://www.ats.ucla.edu/stat/stata/

**References**:**st: index-scrolling varname***From:*Sara Pinoli <sara.pinoli@phd.uni-bocconi.it>

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