Problem 1985. How unique?

Sometimes, when we check unique entries of vector we would like to know how many times each value occurs.

Given vector of numbers A return vector U of unique values of A and corresponding vector H with occurrences.

Example:

   in:  A = [2 2 2 3 3 2 3 8 6 5 6]
  out:  U = [2 3 8 6 5]
        H = [4 3 1 2 1]
Solve

Solution Stats

44.44% Correct | 55.56% Incorrect
Last Solution submitted on Nov 16, 2025

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers132

Suggested Problems

More from this Author40

Community Treasure Hunt

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

Start Hunting!