I have a vector Y=[1, 1, 1, 2, 2, 2,2,2, 3, 3, 3,4]. How can I make matlab tell that the total number of values that are different from each other in the vector is 4? thank you very much

I have a vector Y=[1, 1, 1, 2, 2, 2,2,2, 3, 3, 3,4]. How can I make matlab tell that the total number of values that are different from each other in the vector is 4? thank you very much

Answer 1

[Cedric]

 doc unique
 doc length

and you'll find a simple solution using both functions

[Josue]

thank you very much Cedric!! That is just what I needed.

[Cedric]

You're welcome.