How to make a new matrix out of the combination of 12 matrix

I have 12 Matrix each of 401 * 101, i want to make a combination out of them where i can get a new matrix of 401 row where each new column in the new matrix a combination of different columns of the 12 matrix.

Answer 1

[Shae Morgan]

try concatenating them? Or do you want to add them across? You say "combination" do you mean an average or a sum? We need more information from your question for a good answer.

mat1=rand(401,101);
mat2=rand(401,101);
...
mat12=rand(401,101);

newmat=[mat1 mat2 mat12];

[AHMED ALBELTAGI]

add them , like the first column in the first matrix with different columns of the other eleven matrix and so on.

[AHMED ALBELTAGI]

the values of the final matrix should be the sum of a different columns of the 12 matrix in order to could use them to find the best parameters in my work .

[Shae Morgan]

A=[1 1 1 ;2 2 2; 3 3 3];
B=[3 3 3; 2 2 2; 1 1 1];
C= A+B