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| From | ABDUL ADAM <bihiabdul@yahoo.com> |
| To | "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |
| Subject | st: mysterious missing variables after mydate=mdy(month,day,year) |
| Date | Mon, 30 May 2011 07:43:04 -0700 (PDT) |
Dear List, I have a panel dataset where my date is in different variables (month, day, year), I am able to create a single date variable by mydate=mdy(month,day,year). But the thing is after generating this new variable, stata returns (132 missing values generated). I tried to see where these missing values lie? but to my surprise, I cannot find them; even after su mydate if mydate>=. I get zero observations. So, I wonder: 1)what can be the reason of stata returning a missing value while the new variable has no missing values? 2)how can I check the observations that have these missing values. Thank you in advance, Abdul * * 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/