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From | "Martin Weiss" <martin.weiss1@gmx.de> |
To | <statalist@hsphsun2.harvard.edu> |
Subject | st: RE: Creating new observations |
Date | Tue, 15 Jun 2010 19:50:04 +0200 |
<> This can be done, but is unusual and rare: *********** clear* inp str1 Country byte(Income Population) A 5 5 B 3 3 N 3 3 end set obs `=_N+1' replace Country=Country[1]+"+"+Country[2] in l replace Income=Income[1]+Income[2] in l replace Population=Population[1]+Population[2] in l list, noo *********** HTH Martin -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Ida Johnsson Sent: Dienstag, 15. Juni 2010 19:37 To: statalist@hsphsun2.harvard.edu Subject: st: Creating new observations Hi! I am new to Stata and have the following problem. How do I create new observations if I have panel data, for example Country Income Population A 5 5 B 3 3 ... ... ... ... ... ... ... ... ... ... ... ... N 3 3 and want to add observations that are grouped values for certain countries, for example Country Income Population A 5 5 B 3 3 ... ... ... ... ... ... ... ... ... ... ... ... N 3 3 A+B 8 8 Thanks a lot! Ida * * 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/