Obtaining sparse matrix indices

Hi,

I am using sparse function to obtain non-zero elements of a matrix. for example,

s= sparse(M)

(1,1) -5.0000

(2,1) 1.0000

(8,1) 5.0000

(1,2) 5.0000

(2,2) -6.0000

Now I want to creat3 3 arrays containing the row indices, column indices and value indices of the output. For intance,

A_i= [1,2,8,1,2] : row vector, i of Matrix(i,j).

A_j= [1,1,1,2,2]: row vector, j of Matrix(i,j).

A_s= [-5,1,5,5,-6]: row vector, value of the element: A(A_i(m),A_j(m))=A_s(m).

How can I create the matrix A from the output of the sparse function?

Answer 1

[Steven Lord]

Use find.

[Kalpanie Mendis]

Thanks. figured it now :)