Difference between columns, fixed the first column, in a matrix

Hi, I have a 3D-matrix and I want to calculate differences between columns, fixed the first column, and the value be positive or zero, i.e., for each 3D dimension calculate: max ( column(i)-column(1), 0 ). For example:

Thank you in advance!

Answer 1

[Adam]

res = max( 0, A(:,2:end,:) - A(:,1,:) );

Note: This syntax only works from R2016b. For older syntax see Andrei Bobrov's answer

[Montserrat Vallcorba Martí]

Thank you Adam!

Answer 2

[Andrei Bobrov]

B = bsxfun(@minus,A(:,2:end,:),A(:,1,:));
B(B<0) = 0;

[Montserrat Vallcorba Martí]

Thank you Andrei!