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
Nick Cox <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: Re: st: keep if string for more variables
Date
Tue, 10 Dec 2013 16:26:02 +0000
No; the question is
"keep all blue data"
and the only uncertainty is whether Nick B is talking about syntax to
select variable names or syntax to select string values.
Nick
[email protected]
On 10 December 2013 16:14, Sergiy Radyakin <[email protected]> wrote:
> 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 <[email protected]> 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
>>> [email protected]
>>
>>
>>>> Nick Bornschein <[email protected]> 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/
*
* 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/