Creating a Heatmap based on Historical Map in R Using ggplot2 and tidyr Libraries

Understanding Heatmap Issues in R with heatmaps.2 Package

Clustering Dissimilar Matrices with NA Values Without Imputation in Heatmaps

Understanding Heatmaps and Annotated Data with annHeatmap2 in R: A Step-by-Step Guide to Creating Accurate Annotations and Customizing Your Plot