Bachet’s Four Weights Problem More mathematical puzzling from Nina Zumel: “Bachet’s Four Weights Problem” Continue reading: Bachet’s Four Weights … ← “Toward reproducible research: Some technical statistical challenges” and “The political content of unreplicable research” (my talks at Berkeley and Stanford this Wed and Thurs) Mastering Data Manipulation in R: Comprehensive Guide to Stacking Data Frame Columns →