constrppmn              Estimating a population mean using the
                        constrained Polya posterior.
constrppprob            Dependent sampling from the unifrom
                        distribution on a polytope.
feasible                Feasible solution for a probability
                        distribution which must satisfy a system of
                        linear equality and inequality constraints.
polyap                  Polya sampling from an urn
wtpolyap                Polya sampling from an urn with possibly
                        unequal weights
