MATLAB: Find sum of individual matrix of a given array of matrices and store it in a temporary array

array of matrices sum

Suppose M[l,m,n] an array of m*n matrices of size l, and then required to find sum of individual matix and store it in a temporary array .

eg: l=2 m=3 n=3

M[1,m,n]={{0,1,1},{0,0,0},{1,1,1}}=sum(M[1,m,n])=5

M[2,m,n]={{0,1,1},{0,1,0},{1,1,1}}=sum(M[2,m,n])=6

Finally,

store final sum values of each matrix in to a temporary array.

temp[1,l]={5,6}

That is,

temp[1,1]=5

temp[1,2]=6

Best Answer

Being M your matrix:

sol = sum(sum(M,3),2)

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You create temp as a cell array with two elements. You then compare it to something extracted from downlink table. That implies that the downlink table is a cell array of cells. If the test succeeds then you add the downlink table element to something. But addition is not defined for cell arrays. So we deduce that the element is numeric and that the test will never work because you compare a cell array to a number

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