UNDER THE HOOD
What I Learned Implementing a Classifier from Scratch in Python
With libraries like scikit-learn, it's easy to run an algorithm on some data and automagically get an answer—without understanding exactly how you arrived there. Prepare to unpack the black box. - Jean-Nicholas Hould

EITHER OR?
Exploratory or Explanatory?
How one data visualization practitioner balances the art of storytelling with the desire to let folks discover insights on their own. - Questions in Dataviz

• Related: Storytelling and Success Stories (Visualising Data)

SACKED
Matching to estimate the causal effects of firing an NFL coach
To fire or not to fire? When a football team gives their coach the boot, are they better off for it? (Bonus: a nice primer on causal inference.) - StatsbyLopez

RHYME TIME
Poesy
You could be a poet, and not know it. Feed the works of your favorite author through this new Python library to generate as many lines of verse as you want. - Anthony Federico

OPEN OPTIONS
Two Alternatives to Using a Second Y-Axis
“Almost as often as I see a pie chart with a hundred tiny slivers, I see line graphs using two y-axes. And it is just as bad.” - Stephanie Evergreen