I have been experimenting with the use of dummify in a function to
provide the equivalent of pmean for an unbalanced panel. The
documentation says that the command
list plist = dummify(punit)
should create dummy variables for all values of punit - in my test,
punit takes values 1 to 9. In fact, it creates dummies for values 2
to 9 only. Further, it fails to recognise the options --drop-first
or --drop-last.
Gordon