Creating a Sankey Diagram in Python
Sankey Diagram in Python
Sankey diagrams are a powerful visualization tool that display flows of information or quantities between different nodes. In Python, there are various libraries that can be used to create Sankey diagrams, including matplotlib and plotly. In this tutorial, we will explore how to create Sankey diagrams using both of these libraries.
Table of Contents
Sankey Diagram with Matplotlib
Matplotlib is a popular library for creating static visualizations in Python. To create a Sankey diagram with Matplotlib, follow the steps below:
-
Install the matplotlib library if you haven’t already:
pip install matplotlib
-
Import the required libraries:
- Define the input data for the Sankey diagram. This includes the labels of the nodes and the flows between them:
- Create the Sankey diagram using the
Sankey
class:
- Customize the appearance of the Sankey diagram by adding labels and colors:
- Display the Sankey diagram:
Sankey Diagram with Plotly
Plotly is a powerful library for creating interactive visualizations in Python. To create a Sankey diagram with Plotly, follow the steps below:
-
Install the plotly library if you haven’t already:
pip install plotly
-
Import the required libraries:
- Define the input data for the Sankey diagram. This includes the labels of the nodes and the flows between them:
- Create the Sankey diagram using the
Sankey
class from plotly.graph_objects:
- Customize the appearance of the Sankey diagram:
- Display the Sankey diagram:
In conclusion, creating Sankey diagrams in Python is made easy with the help of libraries like matplotlib and plotly. Whether you prefer static or interactive visualizations, you can effectively represent flows of information or quantities using Sankey diagrams.