Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Re: st: keep if string for more variables


From   Sergiy Radyakin <serjradyakin@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: Re: st: keep if string for more variables
Date   Tue, 10 Dec 2013 11:14:06 -0500

if blue01..blue10 are dummies, then to keep 'any blue' one might say:

clear
set obs 100
forval v=1/10 {
  generate byte blue`v'=runiform()>0.95
}

egen flag=rowtotal(blue1-blue10)
keep if flag
drop flag

list

Best, Sergiy

On Tue, Dec 10, 2013 at 10:55 AM, Red Owl <rh.redowl@liu.edu> wrote:
> My suggestion below assumed you have a single string variable named
> color with values blue01, blue02, yell0w01, etc.
>
> If you have a set of binary variables for various colors, the solution
> would be different.
>
>
>
>> Red Owl <redowl@liu> wrote:
>>
>> Try:
>>
>> keep if substr(color,1,4)== "blue"
>>
>> Red Owl
>> redowl@liu.edu
>
>
>>> 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
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/faqs/resources/statalist-faq/
> *   http://www.ats.ucla.edu/stat/stata/
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index