ComputeHartigan         Compute Hartigan's Number
FitKMeans               Fit a series of kmeans clusterings and compute
                        Hartigan's Number
MapToInterval           Map numbers to interval
PlotHartigan            Plot a series of Hartigan's Numbers
corner                  Grabs a corner of a data set
subOut                  Sub special characters out of a character
                        vector.
subSpecials             Sub special characters out of character
                        vectors.
useful                  Helper functions
