v = nzmax(M)
| Parameter | Description |
|---|---|
| M | numeric, logical, or character array, sparse or full. |
| Parameter | Description |
|---|---|
| v | a integer value. |
nzmax returns the amount of storage allocated for nonzero elements.
For full arrays, nzmax returns numel(M). For sparse matrices, it returns the reserved sparse storage capacity, which can be larger than nnz(M).
Sparse double, single, logical, complex double, and complex single matrices are supported. Stored zero values may contribute to the reserved capacity even though nnz ignores them.
I = [1 2 3];
J = [3 1 2];
V = [32 42 53];
sp = sparse(I, J, V, 5, 4, 10)
size(sp)
nnz(sp)
nzmax(sp)S = sparse([1 2 1 2], [1 1 2 2], single([0 -0 complex(0, 0) complex(0, 2)]), 2, 2, 4);
[nnz(S), nzmax(S)]| Version | Description |
|---|---|
| 2.0.0 | documented sparse single and reserved storage behavior |
| 1.0.0 | initial version |