unique and min by index

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Tiina
Tiina il 16 Dic 2015
Risposto: Walter Roberson il 16 Dic 2015
Hi, if I have A=[1 1 1 2 2 3 3 3] as unique values and B=[ 5 6 7 4 1 2 2 3]. I want to find the min and difference as [5 5 5 1 1 2 2 2] and [0 1 2 3 0 0 0 1]. How may i do that? thanks.

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Walter Roberson
Walter Roberson il 16 Dic 2015
group_min = accumarray(A(:), B(:), [], @min);
result1 = group_min(A);
result2 = B - result1;

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