aha                     Solve Transportation Problem by
                        Aurenhammer-Hoffmann-Aronov Method
all.equal.pgrid         Methods for Judging Near Equality of Objects of
                        Class pgrid or pp
compatible              Test whether Two Objects are Compatible
northwestcorner         Compute starting solution for the
                        transportation problem
pgrid                   Constructor for the pgrid Class
pgrid-object            Class of Pixel Grids
plot.pgrid              Methods for Plotting Objects of Class pgrid or
                        pp
power_diagram           Compute the Power Diagram of Weighted Sites in
                        2-Dimensional Space
pp                      Constructor for the pp Class
pp-object               Class of (Unweighted) Point Patterns
print.pgrid             Print and Summary Methods for Objects of Class
                        pgrid and pp
random32                Images to Illustrate the Use of transport.pgrid
transport               Find Optimal Transference Plan (a.k.a. Optimal
                        Transport Map) Between Two Objects.
transport-package       Optimal Transport in Various Forms
trcontrol               Set the Control Parameters Used by 'transport'.
wasserstein             Compute the Wasserstein Distance Between Two
                        Objects
