Stories by jmount

Free video course on evaluating and planning A/B tests using R

#R: What is magrittr’s future in the tidyverse?

Automating data science steps: join dependency sorting

Fun puzzle: array indexing is associative

Vtreat: a set of procedures for preparing data

Iteration and closures (and lazyeval) in R

The Zero Bug

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)

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