PyPlot: Coloring Your Bar Charts by Category

Using color parameter of bar method, we can set different colors to the bar chart categories in Pyplot.

Example

fruits = ['Apple', 'Banana', 'Orange', 'Grapes']
liked_by_count = [120, 45, 32, 87]
colors = [(1, 0, 0), 'yellow', 'orange', '#00ff00']

plt.bar(fruits, liked_by_count, color=colors)

 

In the above example, the colors list contains colors corresponding to each category ('Apple', 'Banana', 'Orange', 'Grapes'). The color parameter is set to this list when calling plt.bar(), and each bar will be colored accordingly (For example, Apple is in red color, Banana is in yellow color etc.,).

 

Colors can be mentioned in

a.   Simple names like red, blue, green etc.,

b.   Using RGB notation (1, 0, 0) represent red color

c.    Using hexadecimal color codes, #00ff00 specifies green color.

 

Find the below working application.

 

add_category_colors.py

import matplotlib.pyplot as plt

fruits = ['Apple', 'Banana', 'Orange', 'Grapes']
liked_by_count = [120, 45, 32, 87]
colors = [(1, 0, 0), 'yellow', 'orange', '#00ff00']

plt.bar(fruits, liked_by_count, color=colors)

plt.xlabel('Fruits')
plt.ylabel('Liked by people')

plt.title('Bar Chart Example')
plt.show()

 

Output

 

 

Previous                                                    Next                                                    Home