Is it possible to create a variable like list of numbers from other matrix?

For example, I have random matrix 10*10, and I want to create array of numbers that my matrix has, and if some of numbers repeat at matrix several times, show this numbers in my "list" ones.

Thank you!

Answer 1

[Cris LaPierre]

Use the unique function.

a = [1 2 3 3 3];
b = unique(a)

b = 1×3

1 2 3

Answer 2

[the cyclist]

Is this what you mean? I'll illustrate with a smaller matrix.

M = [ 2  2;
      3  5;
      7  7;
      9 11;
     13 13];

[numberOfOccurrences, uniqueValues] = histcounts(M(:)',[unique(M(:))' Inf])

numberOfOccurrences = 1×7

2 1 1 2 1 1 2

uniqueValues = 1×8

2 3 5 7 9 11 13 Inf

(You can obviously get rid of the Inf value. It's necessary because of the way that histcounts does the binning.)