slam (version 0.1-53)

norms: Row and Column Norms

Description

Compute row and column \(p\)-norms.

Usage

row_norms(x, p = 2)
col_norms(x, p = 2)

Value

A vector with the row or column \(p\)-norms for the given matrix.

Arguments

x

a sparse simple_triplet_matrix, or a dense matrix.

p

a numeric at least one. Using Inf gives the maximum norm.

Examples

x <- matrix(1 : 9, 3L)
## Row lengths:
row_norms(x)
## Column maxima:
col_norms(x, Inf)