spam (version 2.11-1)

bandwidth: Bandwidth of a Sparse Matrix

Description

Returns the lower and upper bandwidth of a sparse matrix

Usage

bandwidth(A)

Value

Integer vector containing the lower and upper bandwidth

Arguments

A

spam object

Author

Reinhard Furrer

Details

The matrix does not need to be diagonal. Values can be negative indicating the the matrix contains a band cinfined in the upper or lower triangular part.

See Also

diag.spam.

Examples

bandwidth(spam(c(0, 1), 3, 2))

bandwidth(spam(c(0, 0, 1, rep(0, 9)), 4, 3))