# 10 - scatter
"""
Tutorial reference:
http://www.scipy-lectures.org/intro/matplotlib/matplotlib.html
"""

import matplotlib.pyplot as plt
import numpy as np

n = 1024	# data size
X = np.random.normal(0, 1, n)
Y = np.random.normal(0, 1, n)
T = np.arctan2(Y, X)	# for color later on

plt.scatter(X, Y, s=75, c=T, alpha=.5)

plt.xlim(-1.5, 1.5)
plt.xticks(()) # ignore xticks

plt.ylim(-1.5, 1.5)
plt.yticks(()) # ignore yticks

plt.show()
