Introduction
Sankey diagrams are a type of data flow chart that is used to visualize the direction and volume of flows in a network. They are a powerful tool for analyzing and visualizing complex data flows, and can be used in a variety of industries and fields.
In this article, we will take a closer look at how to create a Sankey diagram, and use it to analyze and visualize data. We will also explore the different types of Sankey charts and their applications in real-world scenarios.

Creating a Sankey Chart
To create a Sankey chart, you will need a good understanding of the data you are working with and a visual interface to create the chart. There are two types of Sankey charts: the traditional rectangular Sankey and the radial Sankey. The rectangular Sankey is a more traditional type of chart, with a large, rectangular shape that is divided into a set of rectangular regions. Each region represents a different type of flow, and the thickness of the regions corresponds to the volume of flow.
The radial Sankey chart, on the other hand, is a more flexible type of chart that includes multiple circular regions. This can be more useful for analyzing complex network flows, as it allows the user to visually compare different types of flows.
Once you have created your chart, you can use it to visualize data flows in your network. You can add arrows to the chart to show the direction of flow, and you can use color coding to highlight different types of flows.
Types of Sankey Charts and Applications
There are several different types of Sankey charts and their applications can vary depending on the data you are analyzing. Here are some common types and their applications:
1. Traditional Rectangular Sankey Chart: Used to visualize data flows in a network with rectangular regions that represent different types of flows.
2. Radian Sankey Chart: Used to visualize data flows in a network with multiple circular regions that allow you to compare different types of flows.
3. Geospatial Sankey Chart: Used to visualize data flows in a network that includes spatial components, such as traffic flow or disease outbreaks.
4. Time-Scale Sankey Chart: Used to visualize flows in a network that includes time as a variable, such as price changes or changes in stock prices.
Conclusion
Sankey charts are a powerful tool for analyzing and visualizing data flows in a network. By using a variety of types of charts and adding arrows and color coding, you can create charts that are both informative and visually appealing. Whether you are working in finance, engineering, or any other field, a Sankey chart can be a valuable tool for analyzing and understanding complex data flows.

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