Understanding the Legend Not Appearing for ggplot Geom_point Color Aesthetics: Solutions for Missing Values

Customizing Legend Positioning in R Plots: A Step-by-Step Guide

Mastering Stacked Bar Plots: Solving the Color Legend Issue in ggplot2

Assigning Math Symbols to Legend Labels for Two Different Aesthetics in ggplot2

Improving Line Graph Legends in ggplot2: A Step-by-Step Guide to Consistent and Readable Plots

Adding Boxes for NA Values in ggplot2 Legends for Continuous Maps

Customizing the Legend Labels in ggord: Alternatives and Solutions

Manipulating Labels, Legends, Spacing in Parallel Coordinate Plots with grid.arrange