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st: Sorting data puzzles


From   "Sergiy Radyakin" <[email protected]>
To   "[email protected]" <[email protected]>
Subject   st: Sorting data puzzles
Date   Fri, 25 Jan 2008 23:09:57 -0500

Dear All!


Here are two quotes from the Manual for Stata 9:

1) "Stata keeps track of the order of your data" [D] sort, p441

2) "It [Stata] sorts already-sorted datasets instantly, so Stata's
ignorance costs us little".

I wonder if Stata is actually making any use of this knowledge (quote
1) to optimize it's algorithms based on this additional information?
or does it only show this in the -describe- report and checks while
merging datasets?




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