st: unexpected behavior with "merge, uniqusing"

["Danielle H. Ferry" <dferry@nber.org>]

Hi all,

When I attempt to merge 2 data files, specifying uniqusing, I get the
following error message:

. merge year month using `tf_natl', uniqu;
variables year month do not uniquely identify observations in the master data
r(459);

Isn't the point of the uniqusing option to require that the "using" data be
unique, NOT the "master" data? (Both data files are sorted on the merge vars).
Am I misunderstanding something?

Please help! This has actually been plaguing me for some time, but I've been
ignoring it until now.

Danielle Ferry

--
National Bureau of Economic Research <http://www.nber.org>


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