Example showing a way to create a grouped bar chart with Matplotlib?

0 votes

Can I have an example showing a way to create a grouped bar chart with Matplotlib and also how to annotate bars with labels? Thank you.

May 27 in Python by anonymous

1 answer to this question.

0 votes

Have a look at this:

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

men_means, men_std = (20, 35, 30, 35, 27), (2, 3, 4, 1, 2)
women_means, women_std = (25, 32, 34, 20, 25), (3, 5, 2, 3, 3)

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

fig, ax = plt.subplots()
rects1 = ax.bar(ind - width/2, men_means, width, yerr=men_std,
rects2 = ax.bar(ind + width/2, women_means, width, yerr=women_std,

# Add some text for labels, title and custom x-axis tick labels, etc.
ax.set_title('Scores by group and gender')
ax.set_xticklabels(('G1', 'G2', 'G3', 'G4', 'G5'))

def autolabel(rects, xpos='center'):
    Attach a text label above each bar in *rects*, displaying its height.

    *xpos* indicates which side to place the text w.r.t. the center of
    the bar. It can be one of the following {'center', 'right', 'left'}.

    ha = {'center': 'center', 'right': 'left', 'left': 'right'}
    offset = {'center': 0, 'right': 1, 'left': -1}

    for rect in rects:
        height = rect.get_height()
                    xy=(rect.get_x() + rect.get_width() / 2, height),
                    xytext=(offset[xpos]*3, 3),  # use 3 points offset
                    textcoords="offset points",  # in both directions
                    ha=ha[xpos], va='bottom')

autolabel(rects1, "left")
autolabel(rects2, "right")


answered May 27 by Bobin

Related Questions In Python

0 votes
1 answer

Best way to create a simple python web service

web.py is probably the simplest web framework ...READ MORE

answered Jul 20, 2018 in Python by Priyaj
• 57,300 points
0 votes
1 answer

Is it possible to create a dictionary with multiple keys for a single value?

One thing that you can do here ...READ MORE

answered Jul 24 in Python by Arvind
• 2,960 points
+1 vote
1 answer

How to create plots using python matplotlib in IPython notebook?

I think you should try: I used %matplotlib inline in ...READ MORE

answered Aug 8, 2018 in Python by Priyaj
• 57,300 points
0 votes
1 answer

Is there a foreach function in python and is there a way to implement it if there isnt any

Every occurence of "foreach" I've seen (PHP, ...READ MORE

answered Aug 31, 2018 in Python by charlie_brown
• 7,720 points
+1 vote
2 answers

how can i count the items in a list?

Syntax :            list. count(value) Code: colors = ['red', 'green', ...READ MORE

answered Jul 6 in Python by Neha
• 330 points

edited Jul 8 by Kalgi 416 views
+4 votes
6 answers
0 votes
1 answer
0 votes
1 answer

Example of creating horizontal bar chart using matplotlib

Try this: import matplotlib.pyplot as plt import numpy as ...READ MORE

answered May 27 in Python by Vaishnavi