Eigen_range {EigenR}

Range of a matrix

Description

Range (column-space, image, span) of a real or complex matrix.

Usage

Eigen_range(M, method = "QR")

Arguments

M

a matrix, real or complex

method

one of "LU", "QR", or "COD"; the "LU" method is faster

Value

A basis of the range of M. With method = "LU", the basis is not orthonormal, while it is with method = "QR" and method = "COD".