import numpy as np
import matplotlib.pyplot as plt
x1_label0 = np.random.normal(1, 1, (100,1))
x2_label0 = np.random.normal(1, 1, (100,1))
x1_label1 = np.random.normal(5, 1, (100,1))
x2_label1 = np.random.normal(4, 1, (100,1))
x1_label2 = np.random.normal(8, 1, (100,1))
x2_label2 = np.random.normal(0, 1, (100,1))
plt.scatter(x1_label1, x2_label0, c='r', marker='o', s=60)
plt.scatter(x1_label1, x2_label1, c='g', marker='x', s=60)
plt.scatter(x1_label2, x2_label2, c='b', marker='_', s=60)
plt.show()
