Helper function fn_2d

Source: R/calculate_se.R

For a description see fn_1

fn_2d(a, b, j, k, L)

Arguments

a

An integer indicating the row position of the random parameter in the asymptotic variance-covariance matrix

b

An integer indicating the column position of the random parameter in the asymptotic variance-covariance matrix

j

Indexing parameter

k

Indexing parameter

L

The lower cholesky matrix