nullSp: Finding null space of linear operator

In gumeo/accSDA: Accelerated Sparse Discriminant Analysis

Finding null space of linear operator

Description

Finds the null space of a linear operator A in R^{n \times m}. The null space is given as a matrix, where the columns form an orthonormal basis for the nullspace. This function emulates the null function in matlab, it works exactly the same, but the basis vectors may be different, i.e. rotated.

Usage

nullSp(A)

Arguments

A	m by n matrix

Details

This function is used by other functions and should only be called explicitly for debugging purposes.

Value

nullSp returns a matrix whose columns span the nullspace of A.

See Also

Alternative Null function in MASS package.

gumeo/accSDA documentation built on Nov. 16, 2023, 11:47 p.m.