Sankey charts have gained popularity in recent years due to their ability to visually represent the flow of data or resources between different entities. This makes them an excellent tool for data visualization, particularly when it comes to understanding complex relationships and patterns in data.
A Sankey chart is a type of flow diagram that uses arrows to represent the movement of data or resources between different points or nodes. In a Sankey chart, the width of the arrow is proportional to the amount of data or resources being transferred. This makes it easy to see which data flows are contributing the most to the overall system.
Creating a Sankey chart in Excel is relatively straightforward and can be done in a few simple steps. The first step is to ensure that you have the necessary data to create the chart. This typically includes a list of entities, the flow of data between those entities, and the amount of data being transferred. Once you have this data, you can create a pivot table in Excel to summarize the data.
Next, you will need to create two additional data sets: one for the start and one for the end of each flow. This will allow you to create the arrow shapes that represent the flow of data between entities. You can use the data to create a scatter plot in Excel, which allows you to customize the appearance of the chart by adjusting the width of the arrows based on the amount of data being transferred.
Once you have created the scatter plot, you can then insert it into a graph and customize the colors, labels, and other design elements to ensure that the chart is easy to read and understand. With a few adjustments, you can create a visually stunning Sankey chart that effectively communicates the flow of data in your system.
Sankey chart creation has many applications, ranging from business and finance to social sciences and engineering. For example, in business and finance, Sankey charts can be used to visualize the flow of funds between different departments, investments, or revenue streams. In social sciences, Sankey charts can be used to analyze the flow of data or resources between different groups, such as the transfer of energy or information in a social network.
Overall, Sankey charts are a powerful tool for data visualization that can help you better understand complex relationships and patterns in your data. By following the steps outlined in this article, you can create a Sankey chart that effectively communicates the flow of data in your system.

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