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| From | "Martin Weiss" <martin.weiss1@gmx.de> |
| To | <statalist@hsphsun2.harvard.edu> |
| Subject | st: AW: dyadic dataset w string id |
| Date | Thu, 25 Feb 2010 17:58:51 +0100 |
<> " I have a variable id1 that is a 4-character string specific to each country;" Your life may be unneccessarily harsh if you stick to string as the type for "id1". If you ************* destring, replace ************* Stata checks whether any vars in your dataset can be safely turned into numeric ones. HTH Martin -----Ursprüngliche Nachricht----- Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Sorin Krammer Gesendet: Donnerstag, 25. Februar 2010 17:37 An: statalist@hsphsun2.harvard.edu Betreff: st: dyadic dataset w string id Dear all, I have a variable id1 that is a 4-character string specific to each country; var1 is numeric and d1 is binary. I need to construct a dyadic dataset that will include all dyadic combinations of this variable. If the original dataset looks like this: Year country id1 var1 d1 2008 Greece 0214 3000 1 2008 Greece 0543 6000 0 2008 Greece 1234 3000 1 Š What I am looking for would be: Year country id1 id2 d1 d2 2008 Greece 0214 0543 1 0 2008 Greece 0543 1234 0 1 2008 Greece 1234 0214 1 1 Thank you kindly for your help. Sorin Sorin M.S. Krammer Postdoctoral Fellow and Associate MIT Sloan School of Management 50 Memorial Drive Cambridge, Massachusetts 02142 United States Email: skrammer@mit.edu * * 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/