Define own datatype Matlab

How to define and use own datatype in Matlab. In Matlab we do not have uint4( 4bit integer data type). I am really new to programming. Please tell me how to do that in a class.

[Kirby Fears]

I'm curious why you're not interested in using uint8 to hold your data. Do you have a specific goal in mind (regarding uint4) other than storing small integers efficiently?

If you're actually after a 4-bit representation of some integer, you can use dec2bin like this approach: http://stackoverflow.com/questions/2687678/integer-array-to-binary-array

I don't think making your own uint4 class will be worth the effort.