NM_geo                  Longitude and latitude of New Mexico county
                        seats.
NM_map                  Data to plot the counties of New Mexico.
NM_popcas               Population and brain cancer cases in New Mexico
                        counties during 1973-1991.
coords_to_knn           Get the k nearest neighbors for each location,
                        given its coordinates.
dist_to_knn             Given a distance matrix, find the k nearest
                        neighbors.
flexible_zones          Computes the flexibly shaped zones as in Tango
                        (2005).
get_zone                Extract a zone from the set of all zones.
knn_zones               Find the increasing subsets of k nearest
                        neighbors for all locations.
mc_pvalue               Calculate the Monte Carlo p-value for a scan
                        statistic.
scan_negbin             Calculate the negative binomial scan statistic.
scan_poisson            Calculate the Poisson scan statistic.
scan_zip                Calculate the ZIP scan statistic.
scanstatistics          scanstatistics: Space-time anomaly detection
                        using scan statistics.
score_locations         Score each location over zones and duration.
top_clusters            Get the top (non-overlappig) clusters.
