Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
From | "Martin Weiss" <martin.weiss1@gmx.de> |
To | <statalist@hsphsun2.harvard.edu> |
Subject | st: AW: do file |
Date | Mon, 8 Mar 2010 11:29:28 +0100 |
<> What does "doubled" mean? Doubled in value or twice present where there was only one entry previously? Try to find out what happened in the -merge-r by typing -ta _merge-... HTH Martin -----Ursprüngliche Nachricht----- Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von lydia huang Gesendet: Montag, 8. März 2010 11:25 An: statalist@hsphsun2.harvard.edu Betreff: st: do file Dear Statalist, is there any thing wrong with the following do-file: /* sort and save the using data*/ cd H:\my\2007 use written, clear sort patient_id save, replace /* sort the master data*/ use 13, clear sort patient_id /* merge based on "patient_id" and save*/ merge patient_id using written save final07, replace i don't know why, but all the observations in the final07 have doubled.Why has this happened? what can i do? Best wishes Lydia * * 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/ * * 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/