MATLAB: How to find the mean values betwwen 3 matrix

matrixmatrix manipulation

Hello everyone, I have three matrix A, B and C (size 1000*1000), I want to generate a new matrix D that contain average values between A, B and C. For more clarification, there is a little example :
 A= [1,2,8; 5,6,7;7,5,8]
 B=[0.2,5,1; 0.55,8,4;55,7,9]  =====> D=[0.2,2,1;0.55,6,4;0.6,5,1]
 C=[1,5,7; 2,6,8;0.6,7,1]
Please, How can I do it?

Best Answer

This works:
A= [1,2,8; 5,6,7;7,5,8];
B=[0.2,5,1; 0.55,8,4;55,7,9];
C=[1,5,7; 2,6,8;0.6,7,1];
Cat = cat(3, A, B, C);
D = min(Cat, [], 3)
D =
            0.2            2            1
           0.55            6            4
            0.6            5            1
Your desired result is not the average or mean values, but the minimum or min values.
If you actually want the average or mean values, change the ‘D’ assignment to:
D = mean(Cat, 3)
I separated out the concatenated matrices, ‘Cat’ assignment so you could see how the code works. You can of course combine them ionto one statement.
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