numbering equal to 1 if the number is different from the previous one

the first element >0 i assign =1

in the subsequent elements if the number is different from the previous one then I put =1.. otherwise =0

a=[0 2 2 2 3 3 3 3 4 4 5 6 6 7 8 9 9 9 9 9 ]

  [0 1 0 0 1 0 0 0 1 0 1 1 0 1 1 1 0 0 0 0]

[SL: edited to pull the text out of the code segment.]

[Steven Lord]

This sounds like a homework assignment. If it is, show us the code you've written to try to solve the problem and ask a specific question about where you're having difficulty and we may be able to provide some guidance.

If you aren't sure where to start because you're not familiar with how to write MATLAB code, I suggest you start with the free MATLAB Onramp tutorial to quickly learn the essentials of MATLAB.

If you aren't sure where to start because you're not familiar with the mathematics you'll need to solve the problem, I recommend asking your professor and/or teaching assistant for help.

[Torsten]

@Luca Re

Hint:

You could try "diff" for a solution.

[Luca Re]

thank