RE: st: RE: Replacing Missing Values for multiple variables at one time?

[Jeff Rosen <rosen.53@osu.edu>]

Thanks for the information. I'll look through those sources. Part of my 
problem as I get involved in Stata is that the coding is slightly different 
from C++. I keep getting little notations mixed up. For example, on the 
code that you provided, calling the new variable name needed an accent mark 
before the word and an apostrophe after. I accidentally used two 
apostrophes and the do-file failed.

Jeff Rosen

At 06:00 AM 7/11/2006, you wrote:

> You can loop using -while-, -forvalues- or -foreach-.
> All these constructs resemble standard constructs in most other programming
> languages. The canonical source is [P]. The main need is
> really to understand how to use local macros to control looping
> in detail.
>
> On -forvalues- and -foreach-,
>
> . search forvalues
>
> would point you to various material, including
>
> FAQ     . . . . . . . . . . . . . . . . Looping over parallel lists in Stata 8
>                 12/04   How do I process parallel lists in Stata 8?
>                 http://www.stata.com/support/faqs/lang/parallel.html
>
> FAQ     . . . . . . . . . .  Going through groups in order of first occurrence
>                 9/05    How do I go through the groups of a variable in
>                 order of their first occurrence in the dataset?
>                 http://www.stata.com/support/faqs/data/groupsinseq.html
>
> FAQ     . . . . . . . . . . Making foreach go through all values of a variable
>                 8/05    Is there a way to tell Stata to try all values of a
>                 particular variable in a foreach statement without
>                 specifying them?
>                 http://www.stata.com/support/faqs/data/foreach.html
>
> FAQ     . . . . . . . . .  Counting distinct strings across a set of variables
>                 7/04    How do I count the number of distinct strings
>                 across a set of variables?
>                 http://www.stata.com/support/faqs/data/distinctstrings.html
>
> SJ-3-2  pr0009  . . . . . . . . . . . . . Speaking Stata:  Problems with lists
>         Q2/03   SJ 3(2):185--202                                 (no 
> commands)
>         discusses ways of working through lists held in macros
>
> SJ-2-2  pr0005  . . . . . .  Speaking Stata:  How to face lists with fortitude
>         Q2/02   SJ 2(2):202--222                                 (no 
> commands)
>         demonstrates the usefulness of for, foreach, forvalues, and
>         local macros for interactive (non programming) tasks
>
> The last two may be closest to what you need. A Google on "how to face lists
> with fortitude" will find internet sources of a shortened version of
> SJ 2(2): 202-222 (2002), the numerology of which is purely fortuitous.
>
> Nick
> n.j.cox@durham.ac.uk
>
> Jeff Rosen
>
> > Is there a tutorial out there that shows how loops are coded in Stata?
>
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