Adding Boxes for NA Values in ggplot2 Legends for Continuous Maps

Character Extraction in R: A Comprehensive Guide

Handling Date and Time Formats in R with lubridate Package

Understanding and Fixing the Error 'non-numeric argument to binary operator' in R Shiny Apps

Understanding the Issue with xts Timestamps in R: A Guide to Minimizing Discrepancies

Extracting Fixed Effects Correlation from lmer Output: A Comparative Analysis of Approaches

Replacing Substrings with Negations Only When Distance Between Words is Within Threshold Using R's `stringr` Package

Creating a Single Correlation Heatmap in R with Two Different Correlation Matrices

Understanding the Problem with lm() Regression and Predict Function: A Practical Guide to Excluding Variables from Linear Models in R

Adding Legends to ggplots Without Aesthetics: A Comprehensive Guide