Using Color Brewer Palettes in ggplot2: A Comprehensive Guide to Customizing Colors for Geometric Shapes

Customizing Plot Panels with ggplot2: Adding Gridlines, Color, and Variables to Show Multiple Plot Points

Using ggplot to Show All X-Axis Values (Yearmon Type) Without Cutting Off Dates

Understanding the Code Behind Scatter Plots with ggplot2: A Troubleshooting Guide

Combining gridExtra and Facet_wrap/Facet_grid for a Grid of Double-Charts