How to get answers in a matrix form

I have this code that outputs answers separately for each column I use the function for. How can I get all the answers in a single concise matrix form?

  % matrix
  for i = 1:15
    y = yval(:,i);
    
    trapz(xcord, y)% Function applied to each column
end

Answer 1

[Geoff Hayes]

Houman - if we assume that the result of trapz is a scalar, then you could do something like

trapzResults = zeros(size(yval,2),1); % pre-size output array
for i = size(yval,2)                  % iterate over the columns of yval
    y = yval(:,i);
    trapzResults(i) = trapz(xcord, y);
end

[Houman Qadir]

Thank you!!