compareCompositionPlot
                        Compare the compositions of a data set and a
                        subset
geosketch               Run geosketch to subsample a matrix
getGeosketchNames       Get names of geosketch functions
getScSamplerNames       Get names of scSampler functions
hausdorffDistPlot       Create diagnostic plot of Hausdorff distances
scsampler               Run scSampler to subsample a matrix
