Mapping XY Data with a Raster Grid at 0.5 Degree Scale: A Step-by-Step Guide to Counting Occurrences in Each Cell

Handling Missing Values in Factor Colors: A Customized Approach with scale_fill_manual

Polygon in Polygon Aggregation in R: A Powerful Technique for Spatial Analysis

Spatial Conditional Autoregressive Model in R: A Step-by-Step Guide for Regions Without Links