text: import pandas as pd
  import numpy as np
  import matplotlib.pyplot as plt
  
  from pandas.plotting import scatter_matrix
  from sklearn import manifold
  from surface_interpolator import interpolated_sample
  
  data = interpolated_sample()
  
  #mds = manifold.MDS(n_components=2, max_iter=500)
  tsne = manifold.TSNE(n_components=2)
  pos = tsne.fit_transform(data)
  
  plt.scatter(pos[80:, 0], pos[80:, 1], color='k')
  plt.scatter(pos[:-80, 0], pos[:-80, 1], color='g')
  plt.show()
  