arch_spirals            A sample of persistence diagrams from the arch
                        spiral
distances               Distances between two persistence diagrams
noisy_circle            Toy Data: Noisy circle
pairwise-distances      Pairwise distances within a set of persistence
                        diagrams
persistence             An 'S3' class for storing persistence data
persistence-set         An 'S3' class object for storing sets of
                        persistence diagrams
persistence_sample      Toy Data: A sample of persistence diagrams
trefoils                A sample of persistence diagrams from the
                        trefoil
