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Adding elements of 3D matrices

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N Madani SYED
N Madani SYED 2012-7-3
Hi all,
Suppose A(10,10,3) and I need to add the elements of A to get B(10,10,1) such that B(1,1,1) = A(1,1,1)+A(1,1,2)+A(1,1,3); B(1,2,1) = A(1,2,1)+A(1,2,2)+A(1,2,3); B(2,2,1) = A(2,2,1)+A(2,2,2)+A(2,2,3); and so on. This without using for loop.
Regards N. M. Syed

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采纳的回答

Sean de Wolski
Sean de Wolski 2012-7-3
B = sum(A,3);

更多回答（1 个）

Thomas
Thomas 2012-7-3
编辑：Thomas 2012-7-3
a(:,:,1)=[1 2 3;4 5 6;7 8 9];
a(:,:,2)=[1 2 3;4 5 6;7 8 9];
a(:,:,3)=[1 2 3;4 5 6;7 8 9];
b=a(:,:,1)+a(:,:,2)+a(:,:,3)
or
b=sum(a,3)

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