dag-constrained correlation matrices
                        Simulation of correlation matrices
gmat                    gmat
metropolis-hastings sampling
                        Upper Cholesky factor sampling using
                        Metropolis-Hastings
rgraph                  Random generation of acyclic digraphs and
                        undirected graphs
set_cond_number         Set the condition number of the matrices in a
                        sample of covariance/correlation matrices
uchol                   Get the upper factor of the upper Cholesky
                        decomposition of a symmetric positive definite
                        matrix.
ug-constrained correlation matrices
                        Simulation of correlation matrices.
ug_to_dag               Moral DAG from non chordal UG
vectorize               Vectorize a sample of covariance/correlation
                        matrices
