Name
nnz — number of non zero entries in a matrix
Parameters
- X
real or complex sparse (or full) matrix
- n
integer, the number of non zero elements in X
Description
nnz
counts the number of non zero entries in a sparse or full matrix
Examples
sp=sparse([1,2;4,5;3,10],[1,2,3]);
nnz(sp)
a=[1 0 0 0 2];
nnz(a)