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From | martine etienne <martieluvsu@yahoo.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: AW: combining datasets |
Date | Wed, 18 Aug 2010 06:42:28 -0700 (PDT) |
...well the unique identifiers are id variables, i guess i want to know which is a better method, I don't want to lose the unique ids ----- Original Message ---- From: Martin Weiss <martin.weiss1@gmx.de> To: statalist@hsphsun2.harvard.edu Sent: Wed, August 18, 2010 9:34:34 AM Subject: st: AW: combining datasets <> Hard to say in the absence of further information. Are these unique identifiers variables? You really need to make up your mind whether you want to -append- or -merge-... See their respective help files for examples... HTH Martin -----Ursprüngliche Nachricht----- Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von martine etienne Gesendet: Mittwoch, 18. August 2010 15:27 An: statalist@hsphsun2.harvard.edu Betreff: st: combining datasets Dear Statalisters, I have several small datasets (about 700-1000) each, with unique identifiers for each. I would like to join or merge these datasets but keep their individual identifiers, is there a way that I can do that? thanks martie * * 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/ * * 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/