triangle2vector: Transform a Symmetric Matrix to it's Vectorised Form and Vise...

In itamarfaran/corrfuncs: Analysis of populations of correlation matrices

Description

A symmetric matrix can be entirely summarized with one of its triangles. these functions transform a matrix's lower triangle to a vectorized form, and transform a vector to a symmetric matrix. In correlation matrices, the diagonal is redundant, so it is possible to vectorize the off diagonal triangle.

Usage

triangle2vector(matr, diag = FALSE)

vector2triangle(vect, diag = FALSE, diag_value = NA)

Arguments

matr	the matrix to vectorize it's lower triangle
diag	if true, vectorize (or construct) the diagonal of the matrix as well
vect	the vector to transform to a symmetric matrix
diag_value	if diag is set to false, what value to place on the diagonal. default is NA, for correlation matrices set to 1.

Value

the transformed matrix / vector

Functions

• vector2triangle: inverse of triangle2vector

See Also

Other vectriangle: convert_corr_array_to_data_matrix_raw(), convert_data_matrix_to_corr_array_raw()

Other vectriangle: convert_corr_array_to_data_matrix_raw(), convert_data_matrix_to_corr_array_raw()

itamarfaran/corrfuncs documentation built on Nov. 26, 2021, 12:02 p.m.