st: re: merging datasets and getting different N in resulting dataset if I

[Kit Baum <baum@bc.edu>]

<>
This is a FAQ. Avoid N:N merges, for one thing; their results are  
unpredictable. When you sort the datasets (as you must prior to Stata  
11) by the merge keys, use the stable option on the sort command.

Kit

Kit Baum   |   Boston College Economics & DIW Berlin   |   http://ideas.repec.org/e/pba1.html
                              An Introduction to Stata Programming   
|   http://www.stata-press.com/books/isp.html
   An Introduction to Modern Econometrics Using Stata  |   http://www.stata-press.com/books/imeus.html



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