| diffeR-package | Metrics of Difference for Comparing Pairs of Maps or Pairs of Variables | 
| categoryComponentsPlot | Category Components plot | 
| categorySourcesPlot | Category Sources plot | 
| composite | create a composite matrix | 
| crosstabm | create a contingency table between a comparison raster map (rows) and a reference raster map (columns) | 
| diffeR | Metrics of Difference for Comparing Pairs of Maps or Pairs of Variables | 
| differenceMR | calculates difference metrics between a reference map and a comparison map both consecutively aggregated at multiple resolutions | 
| diffTablej | calculates difference metrics at the category level from a square contingency table | 
| MAD | Mean Absolute Deviation (MAD) | 
| MADscatterplot | MAD scatterplot | 
| memberships | produces membership values for each category in the input raster at a specified aggregated resolution | 
| overallComponentsPlot | Overall Components plot | 
| overallSourcesPlot | Overall Sources plot | 
| sample2pop | corrects sample counts to population counts in a square contingency table |