modecent                 returns the locations of the modes of a
                         density estimate
plotbary                 plots a barycenter plot from a level set tree
plotvolu                 plots a volume plot from a level set tree
plottree                 plots a tree plot from a level set tree
profgene                 calculates the level set tree of  
                         a rectangularwise constant function
profhist                 calculates the level set tree of a histogram
profkern                 calculates the level set tree of a kernel estimate
simmix                   generate a random sample from a mixture of
                         Gaussians
