Array matching

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Trader 2012-4-26

I have 2 arrays that i'd like to compare values and create a child that contains matching values (and I'd like to do this the fastest way possible).

Example:

A = [1;0;-1;0;0;0;1]
B = [0;1;-1;0;1;0;1]
child = [0;0;-1;0;0;0;1]

Your help is greatly appreciated! Thank you.

Geoff 2012-4-26

child = A;
child(A ~= B) = 0;

Geoff 2012-5-2

Hey it even fooled me... I was under a bit of pressure and lost my sense of humour for a couple of days. =)

Jan 2012-5-2

I frequently confuse humor and humerus. Therefore I thank you for your clarifications.

Is the OP still interested in the solution?

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