"""
This example demonstrates the "bmh" style, which is the design used in the 
Bayesian Methods for Hackers online book.
"""
from numpy.random import beta
import matplotlib.pyplot as plt

plt.style.use('bmh')


def plot_beta_hist(a, b):
    plt.hist(beta(a, b, size=10000), histtype="stepfilled",
             bins=25, alpha=0.8, normed=True)
    return

plot_beta_hist(10, 10)
plot_beta_hist(4, 12)
plot_beta_hist(50, 12)
plot_beta_hist(6, 55)

plt.show()