 |
 |
 |
| |
||||
| From | Michael McCulloch <mm@pinest.org> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: choosing based on number of observations |
| Date | Mon, 16 Apr 2007 09:36:16 -0700 |
I guess you would like to keep those counties for which at least five or more observations exist in your dataset. If that is the case this task can be easily solved with bysort county: keep if _N>= 5
Thank you Sebastian; this is just what I needed, and I can see its utility. Thanks also to others who responded. Michael * * 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/
| © Copyright 1996–2025 StataCorp LLC | Terms of use | Privacy | Contact us | What's new | Site index |