Problem 38. Return a list sorted by number of occurrences

Created by Cody Team

Solve Later

Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x.
Ties are resolved by a sort from lowest to highest.
So if
 x = [1 2 2 2 3 3 7 7 93]
then
 y = [2 3 7 1 93]

Solve

Solution Stats

5523 Solutions
2822 Solvers

Last Solution submitted on Apr 25, 2025

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Chul Min Yeum on 3 Jan 2020

Good problem!

Ahmed Nazir on 30 Sep 2020

It is easy if you use matlab function...

useful function ==> categorical, countcats , sort, unique

solution:
https://github.com/AhmedNazir/MatlabCody/blob/master/popularity.m

Solution Comments

Show comments

Problem Recent Solvers2822

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 38. Return a list sorted by number of occurrences

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers2822

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Problem 38. Return a list sorted by number of occurrences

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers2822

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Players