Vinv: Function for applying V inverse in Algorithm 1

In SEAGLE: Scalable Exact Algorithm for Large-Scale Set-Based Gene-Environment Interaction Tests

Description

This function applies V inverse via the Woodbury matrix identity

Usage

Vinv(G, qrM, tau_over_sigma, sigma, RHS)

Arguments

G	Matrix of genotype markers (size n x L)
qrM	Pre-computation for LxL linear system solve
tau_over_sigma	Tau over sigma from precomputation
sigma	Variance component from model noise epsilon
RHS	Matrix or vector on right-hand side of V inverse

Value

Matrix or vector resulting from left multiplication of Vinv with input RHS

SEAGLE documentation built on Nov. 6, 2021, 1:06 a.m.