MATLAB: Inserting Array into Another Array

Question

Hello,

I have three arrays as shown in the code below

z = zeros(25,2); % main array
y = rand(23,1);
a = ones(25,1);
x = [4,16] % positions at which zeros remain in the second column of array z 
z(:,1) = a;

I want to insert array y into the second column of array z in all positions apart from given in x, where the zeros should remain.

I have read this answer

"https://www.mathworks.com/matlabcentral/answers/322130-insert-an-array-into-another-array-in-a-specific-location"

but my case is a little different than it. Does anyone knows how to do it?

Answer 1

ix=true(size(a));
ix(x)=false;
z(ix,1)=a;