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Return equal values between sets.

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Leor Greenberger
Leor Greenberger 2011-9-21
I have two vectors a and b of different lengths that contain integers. How can I return those values that belong in both a and b? Should I use ismember? ismember seems to return a vector of index numbers, but I could just that in a or b:
[tf, index] = ismember(a, b);
c = b(index);
c = a(index); %same?

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Wayne King
Wayne King 2011-9-21
How about intersect()?
x = 1:3;
y = 2:5;
[c,Ix,Iy] = intersect(x,y);
intersect() does not give repetitions though.
Wayne

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