Thanks to Kit Baum, -groups- (requires Stata 8)
and -todate- (requires Stata 7) have been updated
on SSC.
-groups- would choke if you had an _merge variable
defined in the dataset, as a result of a previous -merge-,
or otherwise. It now no longer requires that _merge not
exist. Thanks to Fred Wolfe for bringing this to my
attention.
-todate- did not respect -if- or -in- conditions properly.
Thanks to Roger Harbord for bringing this to my attention.
Nick
[email protected]
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