sprank
Structural rank
Syntax
r = sprank(A)
Description
r = sprank(A)is the structural rank of the sparse matrixA. For all values ofA,
sprank(A) >= rank(full(A))
In exact arithmetic,sprank(A) == rank(full(sprandn(A)))with a probability of one.
Examples
A = [1 0 2 0 2 0 4 0 ]; A = sparse(A); sprank(A) ans = 2 rank(full(A)) ans = 1
See Also
Introduced before R2006a
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