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| From | "Fabian Schönenberger" <sch.f@gmx.ch> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | st: merge |
| Date | Fri, 01 Jun 2012 14:27:48 +0200 |
Dear Statalist I try to merge two datasets. In both files each observation is uniquely identified by cusip and year. I sort both files with xtset cusip year. Afterwards, I command: merge 1:1 cusip year using "C:\Users\User\Documents\Uni SG\Doktorat\Data\Price Data\pricedatev5.dta", keepusing(capm_marketpremium), keep(3) I am only interested in those observations of cusip-year-combinations which are in my masterfile - therefore keep(3). However, either the matched observations nor the unmatched observations are correct, meaning that I get for each cusip-year observations the wrong capm_marketpremium and I do not get observations in my masterfile for cusip-year observations although the using file has an observation. I also tried merge m:m but it did not work. What am I doing the wrong way? Many thanks for suggestions. Fabian -- NEU: FreePhone 3-fach-Flat mit kostenlosem Smartphone! Jetzt informieren: http://mobile.1und1.de/?ac=OM.PW.PW003K20328T7073a * * 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/