Stories by jmount

Fractional calculus

Women in Data Science – Positive Imagery for the Win

Automating variable treatment for modeling

Vtreat: a simple library for preparing R dataframes for analysis

Sixth grader's internet-famous science project may have been plagiarized

Utomatic bias correction doesn’t fix omitted variable bias

Frequentist inference only seems easy

The Data Enrichment Method

R minitip: don’t use data.matrix when you mean model.matrix

R code style tip: prefer functions that return data frames

Fighting resource leaks in R glm()

Living in A Lognormal World

On the Design of Display Processors (1968) [pdf]

Two of my favorite sections from Augustus de Morgan "A Budget of Paradoxes"

One reason I dread Google doc shares

Dear Chip Bergh: consumers value being able to wash their jeans

Some more Manning technical book discounts

45% discount on Practical Data Science with R

The empty string is a not a valid map key in R

A clear picture of power and significance in A/B tests

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