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

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AHMED ALBELTAGI on 10 Aug 2020
Commented: Shae Morgan on 10 Aug 2020
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.

Shae Morgan on 10 Aug 2020
Edited: Shae Morgan on 10 Aug 2020
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 on 10 Aug 2020
add them , like the first column in the first matrix with different columns of the other eleven matrix and so on.
AHMED ALBELTAGI on 10 Aug 2020
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 on 10 Aug 2020
A=[1 1 1 ;2 2 2; 3 3 3];
B=[3 3 3; 2 2 2; 1 1 1];
C= A+B