comp2vech Turn a variance component relatedness matrix into its half-vectorization

comp2vech Turn a variance component relatedness matrix into its half-vectorization

Usage

comp2vech(x, include.zeros = FALSE)

Arguments

x

Relatedness component matrix (can be a matrix, list, or object that inherits from 'Matrix').

include.zeros

logical. Whether to include all-zero rows. Default is FALSE.

Value

The half-vectorization of the relatedness component matrix.

Details

This function is a wrapper around the vech function, extending it to allow for blockwise matrices and specific classes. It facilitates the conversion of a variance component relatedness matrix into a half-vectorized form.

Examples

comp2vech(list(matrix(c(1, .5, .5, 1), 2, 2), matrix(1, 2, 2)))
#> [1] 1.0 0.5 1.0 1.0 1.0 1.0