find simlar number in array
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if i have a big array (ex: 4x58) and there are some simalr numbers on it. i want to find how many each number on the array has been repeted. how can matlab help me on that? could you explain step by step please?
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Matt Kindig
2012-11-9
编辑：Matt Kindig
2012-11-9
Do you mean similar numbers (as in within a certain threshold apart) or identical numbers? If identical, you can use the hist() function.
doc hist
回答（1 个）
Similar or identical? Those are different! .5 is similar to .6, but not identical.
If you mean identical, you can count how many times each number occurs like this:
A = randi(30,5,5)
N = unique(A(:));
N(:,2) = histc(A(:),N)
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