Introduction
In this tutorial, we want to create a Pie Chart. In order to do this, we use the pie() function of Matplotlib.
Import Libraries
First, we import the Pyplot submodule. The Pyplot submodule contains a collection of important functions such as the plot() function or the pie() function.
import matplotlib.pyplot as pltDefine Data
Now, let's define our example data. We consider the average amount of hours a person spends per week in learning various Data Science Topics.
labels = ["Python", "SQL", "Deep Learning", "Data Visualization"]
hours = [7, 6, 5, 2]Basic Pie Chart
We would like to draw a Pie Chart, that visualizes the amount of hours spent per data science topic. In order to do this, we use the pie() function. We also want to display the labels.
plt.pie(hours, labels=labels)
plt.show()
Highlight a Category in the Pie Chart
Now, we want to make a configuration on the chart. We want to highlight the hours spent on Python. In order to do this, we use the explode parameter.
explode = (0.1, 0, 0, 0)
plt.pie(hours, explode=explode, labels=labels)
plt.show()
Change Style of the Pie Chart
Next, we want to change the style of the Pie Chart. We want to change the colors, add the percentages of each data point and add a legend.
explode = (0.1, 0, 0, 0)
plt.pie(hours, explode=explode, labels=labels)
plt.show()
Conclusion
Congratulations! Now you are one step closer to become an AI Expert. You have seen that it is very easy to create a Pie Chart. We can simply use the pie() function of Matplotlib. Try it yourself!
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