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setintersection [message #17156]

Wed, 15 September 1999 00:00

Jonathan Joseph
Messages: 69
Registered: September 1998

Member

Hi, I've grabbed the useful functions

SetIntersection(a,b) ; Common elements
SetUnion(a,b) ; Elements in either set
SetDifference(a,b) ; Elements in A but not in B

from David Fanning's web page
http://www.dfanning.com/tips/set_operations.html

But, what I really would like is a function
that would return the indeces in set A (or B) of
the intersection of A and B.

Does anyone know an efficient way to get this, or
will I have to resort to a loop?

-Jonathan

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By: Jonathan Joseph on Wed, 15 September 1999 00:00

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