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Dan Saber

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My Q&A with the Coursera Community

Howdy! I did a Q A with the wonderful Coursera Community that I wanted to pass along. It was a fun exercise, as it helped me crystallize my thinking on a range of hiring- and career-related topics. Read on for deeply... Continue Reading

For The Economist: Corporate Values and Campaign Finance

I was interested in whether woke companies donate disproportionately to Democrats, or if their embrace of progressive causes is one big branding exercise. The answer? Kinda both (but mostly branding)! I m unbelievably proud to say that my findings were published... Continue Reading

Partner-Driven A/B Testing at Coursera

EDIT: Thanks to commenter gruddock, I learned that the conference organizers took down the talks from YouTube. Please see here for the slides. They include complete speaker notes. I recently attended the Data Science Innovation in eLearning Conference (hosted by Udemy... Continue Reading

Time Keeps on Slipping: Exploiting Time for Causal Inference with Difference-in-Differences and Panel Methods

Note: This post assumes a passing familiarity with linear regression. Aside from that, it s a highly applied intro to D-in-D regression and panel data techniques. In Due Time In one of my favorite episodes of Futurama, the universe experiences time skips. ... Continue Reading

For Inside Big Data: Making the Leap from Data Science Hopeful to Practioner

I wrote a post for Inside Big Data on transitioning into Data Science a topic I m actually qualified to give advice on! It’s a familiar dilemma. You’ve done your research, read some books, taken some online classes – and at long... Continue Reading

A Dramatic Tour through Python’s Data Visualization Landscape (including ggplot and Altair)

Why Even Try, Man? I recently came upon Brian Granger and Jake VanderPlas s Altair, a promising young visualization library. Altair seems well-suited to addressing Python s ggplot envy, and its tie-in with JavaScript s Vega-Lite grammar means that as the latter develops new... Continue Reading

Analyze Your Experiment with a Multilevel Logistic Regression using PyMC3​

Note: In this post, I assume some familiarity with PyMC. If you need to get up to speed in a hurry and you re familiar with linear regression, go here for a tutorial. Alternatively, you can read for the methodological intuition,... Continue Reading

Using Data to Hold Crappy Businesses Accountable (Airline Edition)

Contextualizing My Vendetta I ve been on a streak of bad flights lately. The last two, in particular, were horrible and not horrible in the standard cramped seats/rubbery food/my-God-that-smell way. Horrible due to (A) an unexplained cancellation, which turned my 12-hour... Continue Reading

The Digital Age is Killing the Middle Class: Reconsidering Jaron Lanier’s 2013 Argument in Light of 2016 Election Nonsense

I. I recently wandered down a Google Black Hole on The Skills Gap, hoping to see if economists had come to a consensus on whether it was a real thing or Convenient-sounding Story. While there, I found an interview that... Continue Reading

Ford Purgatory: Busted Transmissions and Short-Term Thinking

I. Upon completing college, I joined the Treasury Department. (No, I didn’t.) But I did help them bolster the once-proud, then-crumbling pillars of the American Economy: too-big-to-fail banks and car companies. Concretely, I bought a Ford Focus. I’d read Consumer... Continue Reading