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From bilbosax <waspenc...@comcast.net>
Subject Re: Workers and Speed
Date Sat, 06 Aug 2016 01:55:32 GMT
Alex Harui wrote
> IMO, the new loop is constructed in a way that it will only test a vs b
> and never b vs a, so there is no need to store things for the b vs a test.

Yes, but the point that I am trying to make is that I can only calculate the
test A sums and averages against all the other records at this point.  All I
know about the Test B at this point is that it is a certain distance from
Test A, but what about the distance between Test B and all of the other
records and all the sums and averages that I want to keep for Test B?  I
don't have them at the time.  So we are cutting the number of distance
calculations in half, but have to go through them again so that the
sums/averages for each and every record can be ascertained against all the
other records. 

I definitely like the hash idea and want to learn more about it.  Do you
have a book or any links that you recommend to learn a lot about hash
functions?



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