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Dr. Joscelin Rocha-Hidalgo

Published

April 22, 2025

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How to Increase Legend Key Size in ggplot2

By datavizpyr

Added Fri Apr 14th, 2023

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Excerpt from article: In this tutorial, we will learn how to increase the color legend’s point (or legend key) size in ggplot2. Often when you make a plot with multiple groups and large number of data points, the legend key for the color variable are small and can be not legible in the plot.

Here we will see examples of increasing the point size of the legend in a scatter plot using guides() function in ggplot2.

  1. Link to article here: https://datavizpyr.com/increase-legend-key-size-in-ggplot2/
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