find simlar number in array

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?

[Matt Kindig]

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

Answer 1

[Matt Fig]

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)

[Mohammed]

i mean identical sir.

can you tell me how can i use hist?

[José-Luis]

The documentation is usually a good place to start.

 doc histc