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From | Nick Cox <n.j.cox@durham.ac.uk> |
To | "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu> |
Subject | st: RE: panel data, sorting in deciles |
Date | Mon, 11 Oct 2010 10:44:11 +0100 |
The implication is that you already have a variable called -deciles-. -xtile- expects to be given a new variable name. See the help for -deciles- again. Nick n.j.cox@durham.ac.uk Biljana Dlab I have panel data (sorted firmID and financial year). For my regression I need to select firm-years, according to asset size, that is in top three and bottom three deciles. For this purpose I followed your instructions (Decile sorts, http://www.stata.com/statalist/archive/2006-11/msg00309.html) and applied the following solution: . foreach X of varlist dat* { 2. xtile deciles=`X', n(10) 3. } deciles already defined why did I get "deciles already defined" message in red. And is that correct code or should I modify it? * * 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/