Stories by jmount

Announcing the wrapr packge for R

Free DataScience video lecture: Gradient Boosting (examples in Python and R)

An R debugging aid: the Bizarro pipe

Upgrading to macOS Sierra (nee OS X) for R users

Why Do Decision Trees Work?

A Theory of Nested Cross Simulation

Zipf’s Law Arises Naturally When There Are Underlying, Unobserved Variables

Data Cleaning and Preparation, Long Form and Tl;dr Form

Parametric programming in R

Dropbox Public Folders Will Soon Become Private Folders for Basic Users

What is index-free data manipulation?

Vtreat: A Data.frame Processor for Predictive Modeling

Laplace noising versus simulated out of sample methods (cross frames)

Huffington Post's criticism of 538's election forecast

The unfortunate one-sided logic of empirical hypothesis testing

On calculating AUC

Adding polished significance summaries to papers using R

Proofing statistics in papers

Relative error distributions, without the heavy tail theatrics

HP pre-programmed faux failure date of non-HP ink cartridges in its printers

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