Changes in version 0.2.1 (2025-11-18)                  

  - Fixed failed tests due to ggplot2 update

                 Changes in version 0.2.0 (2025-05-16)                  

  - Added an alternative method for density estimation: MASS::kde2d()
  - Fixed various small bugs reported in GitHub issues
  - Switched to modern package package development tools
  - Updated docs
  - Added a NEWS.md file to track changes to the package.