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| From | Halua Koko <haluakoko@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | st: Issues with missing values |
| Date | Mon, 10 Mar 2014 15:31:30 +0100 |
Hello, I've been working with a panel dataset and while putting it together have replaced a number of missing values in variable cal_in with the mean for each of the years. But when trying to create quintiles of the baseline values to assess heterogeneity of impact (using xtile Q=cal_in, nq(5)), I noticed that doing so had clumped together about 1000obs around one value, ie, the mean. So in essence my xtile groups are distributed unevenly and the 4th quantile seems to be entirely missing. FYI my panel is in the wide format. Can anyone suggest a solution to this problem? I was thinking of redistributing the clumped values by small increments so as to have the same mean, but differing values, but not sure how to do this. Can anyone help me figure this out? Thanks in advance, Regards, Halua * * 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/