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| From | Mitch Abdon <mitchaabdon@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: FW: Generating a counter variable |
| Date | Mon, 22 Nov 2010 19:01:25 +0800 |
Hi, try bysort studyid: gen counter=_n On Mon, Nov 22, 2010 at 6:57 PM, Oduwo, Geofrey <GOduwo@ke.cdc.gov> wrote: > Hallo, > > I have a dataset and want to generate a variable that counts the study IDs each time they appear and starts the counting again each time a new study ID appears. How do I do this in stata. > > Thanks > > ========================================== > Geofrey Oyoo Oduwo > Data Analyst > TB Research Branch > KEMRI/CDC Research & Public Health Collaboration > Mobile No: 0725 817 836 or 0750 371 472 > Email GOduwo@ke.cdc.gov or oyoogeofrey@yahoo.com > > > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ > -- Best, Mitch Arnelyn Abdon +639178034402 http://statadaily.wordpress.com http://www.facebook.com/pages/Stata-Daily/116477895082525 * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/