Hellinger_trans         Hellinger transform
January_PDO             Pacific Decadal Oscillation in January
Lanzante                Lanzante L-test
RSI_graph               Regime Shift Index graph
Rodionov                Rodionov (2004)'s STARS algorithm
absolute_to_percentage
                        Converts absolute abundance data to a
                        percentage of total abundance for each site
lake_RSI                DCA-ordinated pollen data from Lake Consuelo
                        with RSI values
lake_data               DCA-ordinated pollen data from Lake Consuelo
regime_means            Calculate means for each regime
rolling_autoc           Rolling autocorrelation
rust_regime_means       Calculates the mean for each regime in a regime
                        shift analysis.
rust_rodionov           Calculate STARS RSI points and return to R as a
                        vector
