getNull: getNull

In TheoreticalEcosystemEcology/alien: Comparative analysis of interaction inference methods

Description

Wrapper around the null function of Armadillo library that finds the orthonormal basis of the null space of matrix A. Note that this wrapper do not allow the user to use any other parameters the original function can.

Usage

getNull(A)

getNullOne(nbsp)

prodNorm(nbsp, B, V)

Arguments

A	a matrix.
nbsp	an integer (from an ecological standpoint, a number of species).
B	a matrix (an orthogonal basis of A).
V	a vector.

Value

The null basis of A.

Functions

• getNullOne: Special case of getNull for which the orthonormal basis of the unit vector is required.

• prodNorm: Matrix product that requires to normalise one vector (see fitIMC()).

Author(s)

Kevin Cazelles

TheoreticalEcosystemEcology/alien documentation built on Dec. 25, 2021, 5:57 p.m.