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Re: st: Interruption of a loop because of missing variables
From
Stas Kolenikov <[email protected]>
To
[email protected]
Subject
Re: st: Interruption of a loop because of missing variables
Date
Fri, 19 Nov 2010 15:17:37 -0600
you can -capture confirm variable cit_1- and use the return code to
see if you want to -continue-.
On Fri, Nov 19, 2010 at 1:25 PM, Florian Seliger <[email protected]> wrote:
> Dear Statalist,
>
> I want to run a foreach loop for 250 files. There are some files were variables are missing so that the loop is interrupted.
>
> I have already tried to use the capture command, but I haven't found an adequate specification yet.
>
> Please see the following example:
>
> foreach file in acer.dta adobe.dta affiliated.dta ... {
>
> use "`file'"
>
> keep id cit_*
> reshape long cit_, i(id)
> drop if cit_ == ""
> drop _j
> ren cit_ pat_no
>
> save "sic_`file'", replace
> }
>
> ***end of the example***
>
> Generally, I have multiple cit_* variables in each dataset. The number is varying among the files. For some datasets, I may have 100 cit_* variables (cit_1, cit_2, ..., cit_100), but for others zero.
>
> How can I tell STATA that the commands should not be executed when there are zero cit_* variables and that I want STATA to proceed with the next file in this case?
>
> Thank you very much,
> Florian
>
>
>
>
>
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--
Stas Kolenikov, also found at http://stas.kolenikov.name
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*
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