Data Must Either Be a Data Frame or a Matrix in ggplot2: A Guide to Resolving Errors

Understanding `ggplot2` and Frequency Polygons: A Step-by-Step Guide to Increasing Line Size in Frequency Polygons

Eliminating X-Axis Gaps in ggplot Line Charts: A Step-by-Step Guide

Plotting Daily Summed Values of Data Against Months Using ggplot2 in R

Customizing Date Ranges in ggplot2: A Beginner's Guide

Mapping Census Data with ggplot2: A Case of Haphazard Polygons

Mastering dplyr with Tibbles: A Powerful Approach to Data Manipulation in R

Looping ggplot over Subsets of Data Frame

Fixing Anomalous Dates when Converting from Class Factor to Class Date in R

Adding Text Below the Legend in a ggplot: 3 Methods to Try