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Calendar Heatmaps to Visualize Time Series Data

The familiar but underused layout is a good way to look at patterns over time. This tutorial gives you an easy way to make them and guides you through the code so you can adapt it to your needs.

About the Author

Nathan Yau is a statistician who works primarily with visualization. He earned his PhD in statistics from UCLA, is the author of two best-selling books — Data Points and Visualize This — and runs FlowingData. Introvert. Likes food. Likes beer.

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This is for people who want to learn to make and design data graphics. Your support goes directly to FlowingData, an independently run site.

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