aHDLt                   Alcohol and HDL Cholesterol
addMahal                Rank-Based Mahalanobis Distance Matrix
addNearExact            Add a Near-exact Penalty to an Exisiting
                        Distance Matrix.
makematch               Make a Match Using Two Criteria Matching with
                        Optimal Subset Matching
makenetwork             Make the Network Used for Matching with Two
                        Criteria
startcost               Initialize a Distance Matrix.
tighten                 Tightening an Observational Block Design
tightenBlock-package    Tightens an Observational Block Design by
                        Balanced Subset Matching
