approxOT                An R package to perform exact and approximate
                        optimal transport.
cost_calc               Calculate cost matrix
hilbert.projection      Get order along the Hilbert curve
transport_options       Function returning supported optimal
                        transportation methods.
transport_plan          Optimal transport plans
transport_plan_given_C
                        Optimal transport plans given a pre-specified
                        cost
transport_plan_multimarg
                        Multimarginal optimal transport plans
wasserstein             Calculate the Wasserstein distance
