Given a vector x, return a vector that indicates the run length of any value in x. Each element in output vector shows how many times the corresponding element in x has appeared.

Example:

 Input  x = [5 3 3 1 0 9 9 4 4 4 4 5 1 2 2]
 Output r = [1 1 2 1 1 1 2 1 2 3 4 2 2 1 2]
Solve

Solution Stats

85 Solutions

45 Solvers

Last Solution submitted on Dec 02, 2025

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers45

George Berken David Hill Athi Alexander Ross

Suggested Problems

More from this Author43

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!