all.regs                Goodness of Fit Measures for a Regression
                        Hierarchy
combos                  All Combinations of a Hierarchy of Models of n
                        Variables
hier.part               Goodness of Fit Calculation and Hierarchical
                        Partitioning
partition               Hierarchical Partitioning from a List of
                        Goodness of Fit Measures
rand.hp                 Randomization Test for Hierarchical
                        Partitioning
urbanwq                 Example Data for hier.part
