Alternatively you can try string comparison:
keep if site_02>="C180" & site_02<="C189"
Just make sure that there are no other codes in between.
Best regards,
Sergiy Radyakin
On 9/14/07, Michael McCulloch <[email protected]> wrote:
> Thank you Michael!
>
> >see help inlist()
> >
> >It only works with up to 10 strings (which your example exactly meets)
> >
> >M Blasnik
> >
> >----- Original Message ----- From: "Michael McCulloch" <[email protected]>
> >To: "Statalist" <[email protected]>
> >Sent: Friday, September 14, 2007 10:01 AM
> >Subject: st: global keys
> >
> >>Dear Statalist members,
> >>I have a dataset which contains a variable <site_02> containing a
> >>long list of tumor ID codes, from which I want to keep ten:
> >>C180 through C189.
> >>
> >>Is there a less labor-intensive way to do the following:
> >>
> >>keep if site_02=="C180" | site_02=="C181" | site_02=="C182" | ///
> >>site_02=="C183" | site_02=="C184" | site_02=="C185" | ///
> >>site_02=="C186" | site_02=="C187" | site_02=="C188" | site_02=="C189"
> >>
> >
> >*
> >* For searches and help try:
> >* http://www.stata.com/support/faqs/res/findit.html
> >* http://www.stata.com/support/statalist/faq
> >* http://www.ats.ucla.edu/stat/stata/
>
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
