Transform an upper triangle-stored matrix to a sparse one

Transform an upper triangle-stored matrix to a sparse one

Usage

upper_triangle_to_sparse(upper_triangle_vals, shift, n, type = c("csc", "csr"))

Arguments

upper_triangle_vals

Numerical vector. The values of the upper triangle stored in a row major format.

shift

Integer. Did you shift the diagonal up.

n

Integer. Number of columns and rows of the symmetric matrix.

type

String. One of c("csc", "csr"). Which type of of sparse matrix to return.

Value

The sparse matrix.