ASSERTKY: Stata module to assert unique dataset keys

David Kantor

Statistical Software Components from Boston College Department of Economics

Abstract: assertky will sort the data and assert that a given varlist is a key for the dataset -- that is, whether the values in the varlist uniquely identify observations. This can be convenient when you wish to simultaneously sort the data and test for whether varlist is a key, such as in preparation for a -merge- or certain -by- operations.

Language: Stata
Requires: Stata version 8
Keywords: sort; unique; key; identify; id; isid; assert; assertky; assertkey; assert key (search for similar items in EconPapers)
Date: 2006-11-09
Note: This module should be installed from within Stata by typing "ssc install assertky". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
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http://fmwww.bc.edu/repec/bocode/a/assertky.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/a/assertky.hlp help file (text/plain)

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Persistent link: https://EconPapers.repec.org/RePEc:boc:bocode:s456785

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