Let's turn this round. If this is not true,
how do you expect match merge to work?
Nick
[email protected]
louis boakye-yiadom
> Is it true that "for a match merge to work, the identifier or
> identifiers
> must uniquely identify each observation"? I found this
> statement in sample
> lecture NC 101 (one of StataCorp's NetCourses), but I thought
> that this
> requirement (of the id uniquely identifying each observation)
> is often
> desirable, but not necessary in all cases. Any insights will
> be appreciated.
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
