cluster_new             Classify new data based on kkmeans result
get_kernel_matrix       Get the kernel matrix for a dataset
get_mknn_dist           Get the average distance to each points
                        k-nearest neighbor
jump_stat               Function to get jump statistic for varying
                        values of k
kkmeans                 An Efficient Kernel K-Means Algorithm
matr                    Estimate the bandwidth parameter for a gaussian
                        kernel using MATr
