The Curious Engineer

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Jeroen Janssens

jeroenjanssens.com

📛 I'm Jeroen (pronounced Yuh-ROON). Welcome to my site. 💻 I work at Posit, PBC as Head of Developer Relations. ✍️ Together with Thijs Nieuwdorp I wrote Python Polars: The Definitive Guide. I’m also the author of Data Science at the Command Line. 🐛 Most of my bugs are written in Python, R, JavaScript

PythonDev tools / editors / IDEsAI / ML

’15’20’25
Posts
26 from 16 Aug 2013 to 29 Oct 2025
Posting
now and then
Kind
personal blog
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https://jeroenjanssens.com/feed.xml

2025 3

  1. Plotnine Cheatsheet
  2. New Role at Posit: Head of Developer Relations
  3. Goodbye Xomnia

2024 3

  1. More talks…
  2. Dimensionality Reduction, Animated
  3. Plotnine: Grammar of Graphics for Python

2023 7

  1. We Are Writing Python Polars: The Definitive Guide
  2. Data Science at the Command Line
  3. Stem-and-Leaf Plot Playground
  4. Archive of My Online Course Embrace the Command Line
  5. Scripting iTerm Key Mappings
  6. I'm Selling 16 Domains Including datascienceworkshops dot com
  7. Closing Shop

2022 1

  1. I'm Building a Lego Table

2021 1

  1. How to Scrape Multiple Pages in R and Rvest

2019 2

  1. Heuristics for Translating Ggplot2 Code to Plotnine Code
  2. Plotnine: Grammar of Graphics for Python (2019)

2016 1

  1. Convert CSV to Vowpal Wabbit's Input Format

2015 2

  1. Anomalies, Concerts, and the Command Line
  2. IBash Notebook

2013 5

  1. Lean, Mean Data Science Machine
  2. Stochastic Outlier Selection
  3. 7 Command-Line Tools for Data Science
  4. Bayesian A/B Testing Headlines
  5. Quickly Navigate your Filesystem from the Command Line

Undated 1

  1. More articles…