summation of elements in multi dimensional matrix

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fatema saba 2015-1-2

评论： fatema saba 2015-1-2

any body there

I have a three dimensional matrix called C. dimension of this matrix is (3,3,k).

K is changeable. I want to create matrix D like that:

D=(C(:,:,1)+C(:,:,2)+....C(:,:,K)

K is changeable. and my be more than 30.

Thankyou

Stephen23 2015-1-2

Is K==k ?

fatema saba 2015-1-2

yes sorry

Stephen23 2015-1-2

编辑：Stephen23 2015-1-2

Use sum with its second optional argument:

D = sum(C,3)

fatema saba 2015-1-2

Thank you

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