Publications by David Robinson
Feller’s coin-tossing puzzle: tidy simulation in R
Previously in this series: The “lost boarding pass” puzzle The “deadly board game” puzzle The “knight on an infinite chessboard” puzzle The “largest stock profit or loss” puzzle The “birthday paradox” puzzle I have an interest in probability puzzles and riddles, and especially in simulating them in R. I recently learned abou...
6723 sym R (4583 sym/22 pcs) 8 img
The ‘spam comments’ puzzle: tidy simulation of stochastic processes in R
Previously in this series: The “lost boarding pass” puzzle The “deadly board game” puzzle The “knight on an infinite chessboard” puzzle The “largest stock profit or loss” puzzle The “birthday paradox” puzzle The “Spelling Bee honeycomb” puzzle Feller’s “coin-tossing” puzzle I love 538’s Riddler column, and the Ap...
8183 sym R (3025 sym/22 pcs) 12 img
The ‘prisoner coin flipping’ puzzle: tidy simulation in R
Previously in this series The “lost boarding pass” puzzle The “deadly board game” puzzle The “knight on an infinite chessboard” puzzle The “largest stock profit or loss” puzzle The “birthday paradox” puzzle The “Spelling Bee honeycomb” puzzle Feller’s “coin-tossing” puzzle The “spam comments” puzzle I love 538�...
8973 sym R (4281 sym/16 pcs) 10 img
The ‘circular random walk’ puzzle: tidy simulation of stochastic processes in R
Previously in this series The “lost boarding pass” puzzle The “deadly board game” puzzle The “knight on an infinite chessboard” puzzle The “largest stock profit or loss” puzzle The “birthday paradox” puzzle The “Spelling Bee honeycomb” puzzle Feller’s “coin-tossing” puzzle The “spam comments” puzzle The “priso...
6761 sym R (3869 sym/14 pcs) 12 img
Machine learning in a hurry: what I’ve learned from the SLICED ML competition
This summer I’ve been competing in the SLICED machine learning competition, where contestants have two hours to open a new dataset, build a predictive model, and be scored as a Kaggle submission. Contestants are graded primarily on model performance, but also get points for visualization and storytelling, and from audience votes. Before SLICED ...
12449 sym 18 img