Problem 55240. Calculate the mean of each half of a matrix

Given a matrix with an even number of columns, n, return a 1-by-2 row vector where the first element is the mean of all the elements in the first n/2 columns, and the second element is the mean of all the elements in the second n/2 columns.
For example
A 3-by-4 matrix. The first two columns are blue, the second two are orange. The mean of the 6 blue elements is calculated. The mean of the 6 orange elements is calculated. The result is a 2-element row vector containing these two means.
A = [3 4 4 3;
1 2 5 3;
1 1 4 5];
m = halfmeans(A)
m =
2 4
(2 = mean of [3,4,1,2,1,1], 4 = mean of [4,3,5,3,4,5])
Solve

Solution Stats

52.47% Correct | 47.53% Incorrect
Last Solution submitted on Nov 22, 2025

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers661

Suggested Problems

More from this Author33

Problem Tags

matrix

Community Treasure Hunt

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

Start Hunting!