Hello.  This morning, I executed the command mdy, which worked.
I continued working with Stata, no unusual events occurred, and
later in the afternoon, I used the command mdy and it didn't work:
mdy(2,29,2004)
unrecognized command:  mdy
r(199);
I did update all, and mdy still doesn't work.
I can certainly write my own mdy function, but I am mostly disturbed by
the fact that the function just disappeared.  So the question:
Why did this happen, and how can I prevent commands from disappearing
like this?
Thank you, Encyclopedia Brown!
Janet
-- 
Janet Rosenbaum                                 [email protected]
PhD student, Committee on Health Policy, Department of Statistics, Harvard GSAS
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