📛 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 and Bash. Every…
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Blog article by Jeroen Janssens. Aug 16, 2013. 6 min read. Update (6-9-2013) This code is now also available as the “jump” plugin in oh-my-zsh. Update (18-8-2013): Thanks to the many useful suggestions in the discussion on Hacker News, I have added (1) quotes to the code, (2) a section about tab completion, and (3) a…
Blog article by Jeroen Janssens. Sep 19, 2013. 21 min read. Data science is OSEMN (pronounced as awesome). That is, it involves Obtaining, Scrubbing, Exploring, Modelling, and iNterpreting data. As a data scientist, I spend quite a bit of time on the command-line, especially when there’s data to be obtained, scrubbed…
This thoroughly revised guide demonstrates how the flexibility of the command line can help you become a more efficient and productive data scientist. You’ll learn how to combine small yet powerful command-line tools to quickly obtain, scrub, explore, and model your data. To get you started, author Jeroen Janssens…
Did you know that there's a Bash kernel for IPython Notebook? It even displays inline images. Could it ever be a convenient environment for doing data science? Would it be worthwhile to publish my book Data Science at the Command Line as a collection of notebooks?