import matplotlib.pyplot as plt
import numpy as np

a = open("cluster.txt").read()
a = a.split("\n\n")

data = []
for b in a:
    cluster = []
    for c in b.split("\n"):
        d = c.split(" ")
        vec = []
        for e in d:
            if e != "":
                vec.append(float(e))
        if len(vec) != 0:
            cluster.append(vec)
    if len(cluster) != 0:
        data.append(cluster)

for c in data:
    xs = [x[0] for x in c]
    ys = [x[1] for x in c]
    plt.subplot()
    plt.plot(xs, ys, "o")
plt.show()