Accessing order pair from sparse matrix

Hello, my question has to do with accessing the indicies of a sparse matrix. Say we define $S=sparse(M)$, then if we put S in the command lines we'd see something like this (for example):

(1,3) 5

(2,4) 1

(2,5) 3.1415

etc...

Is there a way to just access the order pairs directly? I have two matricies with corresponding elements and want to perfome some tests around the nonzero elements of a figure I am working on. This alone would greatly simplified my code but I can not find any documentation on it...

Answer 1

[Jan]

Do you want to get the indices of the non-zero elements?

[i,j,s] = find(S);

The is taken from

help sparse

[Marcus Rosales]

Yes! This'll make my code much faster. Thanks!

Answer 2

[Matt J]

yes, just use find().

[I,J,Vals]=find(S);