python - Separating clusters by a line -


i have data set consists of several clusters. want separate these clusters line, voronoi diagram not created 1 dot. idea have determine shortest distance between each point , find points on outside of cluster. average distance needs taken, determine line separating clusters.

the closest point can determined via cdist. want loop on each cluster , compare each point in cluster other points in other clusters. however, i'm stuck @ doing this. below can find code written in python.

import matplotlib.pyplot plt scipy.spatial.distance import cdist  def closest_point(pt, others):     distances = cdist(pt, others)     return others[distances.argmin()]  ppx = [[615, 618, 621], [629, 623, 620, 625], [614, 622, 610, 612]] ppy = [[524, 530, 527], [559, 556, 548, 548], [559, 574, 572, 542]]  in range(0,3): # range(len(grouped))     j in range(len(ppx[i])):         = [[ppx[i][j], ppy[i][j]]]         others = ..??..         print("closest:", closest_point(a, others))      plt.scatter(ppx[i],ppy[i]) plt.show()

as can see can can find 1 point in cluster (a), however, stuck when want put other 2 clusters in others. has idea how solve issue? or thinking in wrong direction?

i added picture 3 clusters , separation line intend make.


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