Sankey Style: A Clear Path to Understanding Data Flow
In an era where data is the cornerstone of countless decisions, visual language often plays a pivotal role in making complex patterns and relationships easily digestible. Enter the Sankey chart, an innovative form of infographic design that shines brightly as a guide through the intricate and often labyrinthine pathways of data flow. The ‘Sankey Style’ we are referring to here is more than an aesthetic category; it embodies a comprehensive approach to representing data, making it transparent, understandable, and actionable. Let’s embark on a comprehensive exploration of what makes Sankey charts so special and how you can create them like a master.
A Primer on Sankey Charts
Sankey charts were invented in 1898 byWallet Matousek who intended them as a tool to visually represent workflows and value flows. However, it wasn’t until the late 20th and early 21st centuries that this intriguing diagram style experienced a surge in popularity, particularly with the rise of computers and data analytics software.
At its core, a Sankey diagram is composed of nodes and arrows. Each node represents a distinct data category or entity, and the arrows depict flows: how energy (in Matousk’s original use) or data flows from one data category to another across a given time frame.
Key Principles of Sankey Design
1. Clarity and Simplicity: The primary aim of a Sankey chart is to simplify data by breaking it down into comprehensible flows and highlighting the proportionate distribution. The fewer the nodes and arrows, the better it becomes as a communication tool.
2. Color Coding and Hierarchies: Employing different colors or shapes can differentiate between different types of data flows or highlight key nodes. This makes the hierarchy and context of the data more apparent.
3. Balance and Space: When designing Sankey charts, balance is crucial. Each flow (and consequently each node) should be proportional to the data flow it represents, which also means each visual element should naturally fit into the surrounding space.
4. Interactivity: Modern interpretations of Sankey charts often include interactive features. Clickable nodes or hovers can provide additional context, making the data even more accessible.
Use Cases for Sankey Charts
1. Workflows and Processes: From manufacturing plants to office workflows, any complex system with multiple interlinked processes benefits immensely from being visualized as a Sankey chart.
2. Energy Flow Analysis: Tracking the flow of energy in different systems—from electrical grids to our own bodies—can shed light on efficiency and potential cutbacks.
3. Company Financial Statements: Sankey charts can simplify the balance sheets of corporations, providing easy comprehension of asset flows and capital distribution.
4. Network Traffic Analysis: For IT professionals, visualizing network traffic is a game changer. Sankey charts help identify bottlenecks and potential areas for improvement.
Creating Your Own Sankey Charts
There are several software tools available to create Sankey diagrams, such as Tableau, Google Charts, and dedicated applications like Sankey II and OmnichartPro. Most of these offer user-friendly interfaces and drag-and-drop features, streamlining the diagramming process.
Before you begin, ensure your data is clean and organized properly—after all, this is the foundation of a well-executed Sankey chart. Divide your data into categories (nodes), and quantify the data flows between these categories. Use the tools’ pre-defined templates, which are often designed for common use cases, if required, and customize further according to your needs.
Conclusion
The Sankey effect is the kind of clarity and comprehension that can turn raw data into valuable insights. With the right design and an understanding of the data flow you’re trying to depict, these charts can reveal complex patterns and relationships in a way that is clear and straightforward.
As datasets grow and the nature of the information landscape evolves, so too will the applications for visual representations like the Sankey diagram. The ‘Sankey Style’ is not just a visual approach to data—it’s a method for making data speak for itself, and providing clear, insightful directions through the sometimes murky waters of statistical data.
SankeyMaster
SankeyMaster is your go-to tool for creating complex Sankey charts . Easily enter data and create Sankey charts that accurately reveal intricate data relationships.