is.singular.matrix: Singular Matrix

In jeksterslabds/jeksterslabRds: Jekster's Lab Data Science and Statistics

Description

Checks if a square matrix is not invertible.

Usage

is.singular.matrix(x, tol = 1e-08)

Arguments

x	A numeric square matrix.
tol	Tolerance.

Value

Returns TRUE if the matrix is singular or not invertible, meaning the determinant of the matrix is 0.

Author(s)

Ivan Jacob Agaloos Pesigan

Examples

Sigma <- matrix(
  data = c(
    225, 112.50, 56.25,
    112.5, 225, 112.5,
    56.25, 112.50, 225
  ),
  ncol = 3
)
is.singular.matrix(Sigma)

jeksterslabds/jeksterslabRds documentation built on July 16, 2020, 3:41 p.m.