PeerJ Author & Reviewer 85 Points Contributions by role Preprint Author 70 Reviewer 15 Contributions by subject area Computer Education Data Science Scientific Computing and Simulation Social Computing Data Mining and Machine Learning Nicholas J Horton PeerJ Author & Reviewer Summary Data Science Statistics Editing Journals Past or current institution affiliations Amherst College Websites Google Scholar PeerJ Contributions Preprints 1 August 30, 2017 - Version: 2 Wrangling categorical data in R Amelia McNamara, Nicholas J Horton https://doi.org/10.7287/peerj.preprints.3163v2