estimate                Perform bootstrap estimation of confidence
                        intervals of ranked HR scores
make_data               return a sample data set of random values for
                        two groups
make_data2              return a sample data set of random values for
                        two groups with three technical reps per group
make_data3              return a sample data set of random values for
                        three groups with three technical reps per
                        group
plot.hrest              plots the 'hrest' object
print.hrest             print a summary of the hrest object
