conditional array extraction based on control array
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I have the following problem:
For example, I have three arrays:
x = [1,2,3,4,5,6,7,8,9,10] and its corresponding y values: y = [21,43,77,54,38,24,99,64,77,33] and also a "control" array: c = [3,5,7,9]
Is it possible to somehow extract from 'y' only those entries that have corresponding entries in both 'x' and 'c' array and put them in for example 'z'? In this case z = [77,38,99,77]
Thanks.
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Eric Sampson
le 24 Jan 2013
If I understand your question correctly, try this:
z=y(intersect(x,c));
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