Python Polars: The Definitive Guide: Transforming, Analyzing, and Visualizing Data with a Fast and Expressive DataFrame API - Softcover

Janssens, Jeroen; Nieuwdorp, Thijs

 
9781098156084: Python Polars: The Definitive Guide: Transforming, Analyzing, and Visualizing Data with a Fast and Expressive DataFrame API
Softcover
ISBN 10: 1098156080 ISBN 13: 9781098156084
Verlag: O'Reilly Media, 2025

Inhaltsangabe

Unlock the power of Polars, a Python package for transforming, analyzing, and visualizing data. In this hands-on guide, Jeroen Janssens and Thijs Nieuwdorp walk you through every feature of Polars, showing you how to use it for real-world tasks like data wrangling, exploratory data analysis, building pipelines, and more.

Whether you're a seasoned data professional or new to data science, you'll quickly master Polars' expressive API and its underlying concepts. You don't need to have experience with pandas, but if you do, this book will help you make a seamless transition. The many practical examples and real-world datasets are available on GitHub, so you can easily follow along.

  • Process data from CSV, Parquet, spreadsheets, databases, and the cloud
  • Get a solid understanding of Expressions, the building blocks of every query
  • Handle complex data types, including text, time, and nested structures
  • Use both eager and lazy APIs, and know when to use each
  • Visualize your data with Altair, hvPlot, plotnine, and Great Tables
  • Extend Polars with your own Python functions and Rust plugins
  • Leverage GPU acceleration to boost performance even further

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Über die Autorin bzw. den Autor

Jeroen Janssens is a Senior Machine Learning Engineer at Xomnia in Amsterdam, where he uses Polars on a daily basis. He enjoys wrangling data, implementing machine learning models, and building solutions using Python, R, JavaScript, and Bash. Previously, he ran Data Science Workshops, a training and coaching firm. Jeroen is the author of Data Science at the Command Line (O'Reilly, 2021). He has been an assistant professor at Jheronimus Academy of Data Science and a data scientist at various startups in New York City. Jeroen holds a PhD in machine learning from Tilburg University and an MSc in artificial intelligence from Maastricht University. He lives with his wife and two kids in Rotterdam, the Netherlands.

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Verlag
O'Reilly Media
Erscheinungsdatum
2025
Sprache
Englisch
ISBN 10 
1098156080
ISBN 13 
9781098156084
Einband
Taschenbuch
Auflage
1
Anzahl der Seiten
501
Kontakt zum Hersteller
O'Reilly
https://oreilly.com

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