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Re: st: anycount .a and .b


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: anycount .a and .b
Date   Tue, 3 Jul 2012 18:53:44 +0100

You will probably tell me next that there are string variables too.


gen a_missing = 0
gen b_missing = 0

ds , has(type numeric)

foreach v in `r(varlist)' {
       replace a_missing = a_missing + (var`j' == .a)
       replace b_missing = b_missing + (var`j' == .b)
}

See

SJ-2-2  pr0005  . . . . . .  Speaking Stata:  How to face lists with fortitude
        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  N. J. Cox
        Q2/02   SJ 2(2):202--222                                 (no commands)
        demonstrates the usefulness of for, foreach, forvalues, and
        local macros for interactive (non programming) tasks

SJ-9-1  pr0046  . . . . . . . . . . . . . . . . . . .  Speaking Stata: Rowwise
        (help rowsort, rowranks if installed) . . . . . . . . . . .  N. J. Cox
        Q1/09   SJ 9(1):137--157
        shows how to exploit functions, egen functions, and Mata
        for working rowwise; rowsort and rowranks are introduced


On Tue, Jul 3, 2012 at 6:47 PM, Jörg Eulenberger <j.eulenberger@web.de> wrote:
>
> Thanks Nick for the solution.
>
> But i was  not quite correct  by the varnames. Sorry.  Many variables
> have different names like: eis01 anzahlki GEBJA01K STU01K KT01K EP01K
> name04k.
>
> Now i could  rename all vars but is there any way to avoid this?
>
> Sorry for myincorrectness.
>
> Jörg
>
>
>
>
> Am 03.07.2012 19:17, schrieb Nick Cox:
>> gen a_missing = var1 == .a
>> gen b_missing = var1 == .b
>>
>> qui forval j = 2/600 {
>>       replace a_missing = a_missing + (var`j' == .a)
>>       replace b_missing = b_missing + (var`j' == .b)
>> }

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