Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
| From | Michael Riechert <Michael.Riechert@the-klu.org> |
| To | "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |
| Subject | st: Problem creating lag variable in panel data |
| Date | Tue, 17 Dec 2013 19:02:52 +0000 |
Dear all, I still facing problem while creating a lag variable within my panel data. I have multiple cross sectional units (companies) and years. I used xtset to define panel structure and then gen roi1=1.roi to create a 1-year lag variable of the original variable roi. But the new variable only contains zeros. The same is true for other variables. I am sure I did something wrong but have no clue so far what it is. I appreciate every hint you will give me. Thank you! Best regards, Michael * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/