Cleaned up: added docstrings and switched mixcase variables to comply…

… with PEP 8
matplotlib · tacaswell · May 27, 2016 · May 27, 2016 · May 27, 2016 · 39da3c3ac54250ca0ff42e4648b99e5f8096d96e
commit 39da3c3ac54250ca0ff42e4648b99e5f8096d96e
diff --git a/examples/api/barchart_demo.py b/examples/api/barchart_demo.py
@@ -1,20 +1,22 @@
-# a bar plot with errorbars
+"""
+A bar plot with errorbars and height labels on individual bars
+"""
 import numpy as np
 import matplotlib.pyplot as plt

 N = 5
-menMeans = (20, 35, 30, 35, 27)
-menStd = (2, 3, 4, 1, 2)
+men_means = (20, 35, 30, 35, 27)
+men_std = (2, 3, 4, 1, 2)

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

 fig, ax = plt.subplots()
-rects1 = ax.bar(ind, menMeans, width, color='r', yerr=menStd)
+rects1 = ax.bar(ind, men_means, width, color='r', yerr=men_std)

-womenMeans = (25, 32, 34, 20, 25)
-womenStd = (3, 5, 2, 3, 3)
-rects2 = ax.bar(ind + width, womenMeans, width, color='y', yerr=womenStd)
+women_means = (25, 32, 34, 20, 25)
+women_std = (3, 5, 2, 3, 3)
+rects2 = ax.bar(ind + width, women_means, width, color='y', yerr=women_std)

 # add some text for labels, title and axes ticks
 ax.set_ylabel('Scores')
@@ -26,7 +28,9 @@


 def autolabel(rects):
-    # attach some text labels
+    """
+    Attach a text label above each bar displaying its height
+    """
    for rect in rects:
        height = rect.get_height()
        ax.text(rect.get_x() + rect.get_width()/2., 1.05*height,