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vaex

Use this skill for processing and analyzing large tabular datasets (billions of rows) that exceed available RAM. Vaex excels at out-of-core DataFrame operations, lazy evaluation, fast aggregations, efficient visualization of big data, and machine learning on large datasets. Apply when users need to work with large CSV/HDF5/Arrow/Parquet files, perform fast statistics on massive datasets, create visualizations of big data, or build ML pipelines that do not fit in memory.

5,913stars710forksUpdated 1/15/2026

Security Assessment

Safe(100/100)
Security Score100/100

About vaex

Vaex is a powerful Python library designed for the efficient processing and analysis of large tabular datasets that exceed the available RAM. It addresses the challenges posed by traditional data processing tools that struggle with massive datasets, providing features for out-of-core DataFrame operations. With Vaex, users can perform lazy evaluation, enabling them to work with billions of rows without loading everything into memory, making it ideal for interactive data exploration and analysis.

The main features of Vaex include high-speed data processing, fast aggregations, and efficient visualization capabilities, all tailored for large datasets. Users can easily load data from various formats such as CSV, HDF5, Arrow, and Parquet, and perform operations like filtering, creating virtual columns, and aggregating data without incurring significant memory overhead. Additionally, Vaex supports machine learning integration, allowing users to build ML pipelines and perform complex analyses on big data seamlessly.

This skill is particularly useful for data scientists, analysts, and researchers working with large-scale datasets in fields like finance, astronomy, and other scientific disciplines. It is designed for anyone who needs to perform statistical analysis, create visualizations, or build machine learning models on datasets that are too large to fit into memory, enabling them to unlock insights from their data efficiently.

FAQ

What data formats does Vaex support?

Vaex supports various data formats including CSV, HDF5, Arrow, and Parquet.

Can I use Vaex for machine learning tasks?

Yes, Vaex can be used to build machine learning pipelines and integrates with frameworks like scikit-learn and XGBoost.

Is Vaex suitable for real-time data processing?

Vaex is optimized for out-of-core operations and may not be suitable for real-time data processing as it focuses on batch operations.

What are the memory requirements for using Vaex?

Vaex is designed to work with datasets larger than available RAM, utilizing lazy evaluation to minimize memory usage.

How does Vaex handle missing data?

Vaex provides features for working with missing data, including filtering and aggregating operations.

Install vaex

Download and extract the skill files to your .claude/skills/ directory.

Quick Setup:

  1. Copy the skill folder to .claude/skills/
  2. Claude will automatically detect and use the skill