Reconstruct a matrix from a flattened upper triangle vector

This function takes a flattened vector of the upper triangle from a symmetric matrix (think correlation matrix) and reconstructs the full dense matrix for you.

Usage

rs_upper_triangle_to_dense(cor_vector, shift, n)

Arguments

cor_vector

Numeric vector. The vector of correlation coefficients that you want to use to go back to a dense matrix.

shift

Integer. If you applied a shift, i.e. included the diagonal values = 0; or excluded the diagonal values = 1.

n

Integer. Original dimension (i.e., ncol/nrow) of the matrix to be reconstructed.

Value

The dense R matrix.