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Re: st: keep if string for more variables


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: keep if string for more variables
Date   Tue, 10 Dec 2013 15:38:42 +0000

What you typed is legal in Stata, given a variable whose name
abbreviates to -color-,  but it will catch only

"blue*"

as a literal string which is the value of that string variable.

You appear to want

keep blue*

which is a beast of a different colour (as we say in English).

Nick
njcoxstata@gmail.com


On 10 December 2013 15:31, Nick Bornschein <nick.bornschein@gmail.com> wrote:
> Hi,
>
> I have string variables, blue01 to blue10 and yellow01 to yellow10. I want
> to keep some data by using:
>
> keep if color == "blue*" to keep all blue data, but it does not work. Any
> idea?
>
> Thanks a lot
> -Nick
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