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# Based on example from http://matplotlib.org/examples/api/barchart_demo.html

# Data collected from NY Times, 5:06PM, 29 Nov 2016 for 2016
# http://www.nytimes.com/elections/results/president
# Other election results taken from Wikipedia articles about each U.S. Presidential Election
# e.g. https://en.wikipedia.org/wiki/United_States_presidential_election,_2000

# By R. Stuart Geiger, released CC0 (https://creativecommons.org/publicdomain/zero/1.0/)

import numpy as np
import matplotlib.pyplot as plt
import matplotlib.ticker as tkr

N = 5
demVotes = (50999897, 59028444, 69498516, 65915795, 64817808)

ind = np.arange(N)  # the x locations for the groups
width = 0.35       # the width of the bars

fig, ax = plt.subplots(figsize=(8,4))
rects1 = ax.bar(ind, demVotes, width, color='b')

repVotes = (50456002, 62040610, 59948323, 60933504, 62510659)
rects2 = ax.bar(ind + width, repVotes, width, color='r')

# add some text for labels, title and axes ticks
ax.set_ylabel('Popular vote')
ax.set_title('Popular vote counts for presidential elections')
ax.set_xticks(ind + width)
ax.set_xticklabels(('2000', '2004', '2008', '2012', '2016'))

ax.legend((rects1[0], rects2[0]), ('Democratic candidate', 'Republican candidate'), loc=3)

# From http://stackoverflow.com/questions/8271564/matplotlib-comma-separated-number-format-for-axis/8272640

def func(x, pos):  # formatter function takes tick label and tick position
    s = '%d' % x
    groups = []
    while s and s[-1].isdigit():
        groups.append(s[-3:])
        s = s[:-3]
    return s + ','.join(reversed(groups))

y_format = tkr.FuncFormatter(func)  # make formatter
ax.yaxis.set_major_formatter(y_format)  # set formatter to needed axis


plt.show()
plt.savefig("pop-vote-counts.png")









    





<matplotlib.figure.Figure at 0x7febd3c13d30>