"""
========================================
Bayesian Methods for Hackers style sheet
========================================

This example demonstrates the style used in the Bayesian Methods for Hackers
[1]_ online book.

.. [1] http://camdavidsonpilon.github.io/Probabilistic-Programming-and-Bayesian-Methods-for-Hackers/

"""
from numpy.random import beta
import matplotlib.pyplot as plt


plt.style.use('bmh')


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


fig, ax = plt.subplots()
plot_beta_hist(ax, 10, 10)
plot_beta_hist(ax, 4, 12)
plot_beta_hist(ax, 50, 12)
plot_beta_hist(ax, 6, 55)
ax.set_title("'bmh' style sheet")

plt.show()