https://www.pistack.xyz/tags/dataframe/ Recent content in Dataframe on Pi Stack Hugo en-us Sat, 20 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-20-dataframe-processing-libraries-polars-vaex-datatable/ Sat, 20 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-20-dataframe-processing-libraries-polars-vaex-datatable/ <h2 id="introduction">Introduction</h2> <p>When building self-hosted data pipelines, choosing the right DataFrame library can dramatically impact performance, memory usage, and developer productivity. While pandas remains the de facto standard for in-memory data manipulation, three open-source alternatives — <strong>Polars</strong>, <strong>Vaex</strong>, and <strong>datatable</strong> — offer significant advantages for server-side workloads: lazy evaluation, out-of-core processing, and multi-threaded execution.</p>