MATLAB: Assigning count values to the column of a matrix

matrix

Hello,

I have a matrix A with the size 29×3 and I want to fill third column with the numbers from 29(the max lenght) to 1.

Is there a possible way to do it without using loops?

Regards

Either one of these, depending on the order that you want:

A(:,3) = 1:29
A(:,3) = 29:-1:1

Use max, and some indexing if needed:

A = [...]; % some matrix
N = 3; % the row that you want
max(A(N,:))

G = randi(3, 45, 2);
I = randi(3, 45, 2);
sum(all(G == I, 2))