rmRNAseq (version 0.1.0)

varbeta: Recovering a Symmetric Matrix from Its Lower Triangular Matrix

Description

This function recovers a symmetric matrix from the vector consisting of its lower triangular elements.

Usage

varbeta(lower.tri.vector, diag = TRUE)

Arguments

lower.tri.vector

a numerical vector containing the lower triangular elements of the symmetric matrix.

diag

a logical indicator, TRUE or FALSE, indicating if lower.tri.vector contains diagonal elements of the symmetric matrix or not.

Value

The function varbeta returns the original symmetric matrix. We only use diag = FALSE to recover the correlation matrix, because diagonal elements of a correlation matrix are all 1, so there is no reason to store these diagonal elements in this case.

Details

diag = FALSE is the case where a correlation matrix whose diagonal elements are 1, therefore there is no need in storing the diagonal elements.

References

Yet Nguyen, Dan Nettleton, 2019. rmRNAseq: RNA-seq Analysis for Repeated-measures Data

Examples

# NOT RUN {
set.seed(1)
lower.tri.vector <- runif(10)
varout <- rmRNAseq:::varbeta(lower.tri.vector, diag=TRUE)
varout
# }