how can I create a new array with same data as existing array and in specific order ?

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ME
ME 2015-4-15
回答： Star Strider 2015-4-15
i have two arrays.
a = [1,2,3,4,5];
b = [6,1,7,3,5];
I want to be able to create another array called 'c' which contains everything a has but in the order it appears in 'b'. so c should look like: -
c = [1,3,5];

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Star Strider
Star Strider 2015-4-15
This works in the more general situation:
a = randi(10, 1, 5);
b = randi(10, 1, 5);
[C,ia,ib] = intersect(a,b);
c = b(sort(ib))

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