Anna Plantinga PhD » R-Ladies complete list Go back to directory. Add to Address Book. Anna Plantinga, PhD Assistant Professor of Statistics Williams CollegeMathematics and Statistics City Williamstown MA United Stateshome Biographical Info R-Packages: Microbiome Regression-Based Kernel Test (MiRKAT) Interests: biostatistics, statistics, reproducible research Contact Method: LinkedIn Categories: Speaker, United States Updated 5 years ago.