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visualization
Author

Dr. Joscelin Rocha-Hidalgo

Published

April 22, 2025

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How to Fill Maps with Density Gradients Using R, ggplot2, and sf

By Andrew Heiss

Added Thu Feb 20, 2025

What is this?

This tutorial addresses the challenge of overplotting in maps with numerous data points. It explores methods to visualize point density by:

  • Aggregating data within geographic boundaries.

  • Creating grids to summarize point counts.

  • Applying density gradients for smoother visual representation.

The guide provides practical examples using R packages ggplot2 and sf.

  1. Link to tutorial: https://www.andrewheiss.com/blog/2023/07/28/gradient-map-fills-r-sf/
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