vaex

Process large tabular datasets beyond RAM with lazy, out-of-core DataFrames.

Updated Mar 31, 2026
One-click install
npx skills add https://github.com/HaykTarkhanyan/dst_research --skill vaex-hayktarkhanyan
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: vaex
Source: https://github.com/HaykTarkhanyan/dst_research/tree/main/.claude/skills/vaex
Command: npx skills add https://github.com/HaykTarkhanyan/dst_research --skill vaex-hayktarkhanyan

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Vaex enables efficient processing of datasets that exceed available RAM by leveraging lazy, out-of-core DataFrames, enabling interactive analysis without loading the entire dataset into memory.

Core Features & Use Cases

  • Lazy evaluation and memory-efficient operations for datasets with billions of rows
  • Load and transform data from formats such as CSV, HDF5, Arrow, and Parquet
  • Visualize, filter, and perform fast statistics and machine learning pipelines on large data
  • Real-world scenarios include scientific simulations, astronomical surveys, and finance_time-series analysis with large-scale data

Quick Start

Open a large dataset with Vaex and begin lazy processing to explore and visualize data.

Frequently Asked Questions about vaex

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I process large datasets that exceed available RAM in Python?

You can process large datasets beyond RAM using out-of-core DataFrames with lazy evaluation, which avoids loading the entire dataset into memory and enables interactive analysis on billions of rows.

What file formats can I load when doing out-of-core data processing?

Out-of-core data processing supports loading and transforming data from CSV, HDF5, Arrow, and Parquet formats, allowing you to handle large-scale tabular datasets efficiently.

Can I perform machine learning and visualization on big data without loading it into memory?

Yes, you can perform machine learning pipelines, fast aggregations, and visualizations on big data using lazy evaluation, which processes data without loading the entire dataset into memory.

What is the best way to handle fast aggregations on datasets with billions of rows?

The best way to handle fast aggregations on datasets with billions of rows is using lazy, out-of-core DataFrames, which provide memory-efficient operations for interactive analysis.

Does lazy evaluation work for time-series analysis and scientific simulations?

Yes, lazy evaluation works for time-series analysis and scientific simulations, providing memory-efficient processing and fast statistics for large-scale data workflows.

When should I use out-of-core DataFrames instead of standard in-memory processing?

You should use out-of-core DataFrames when your dataset exceeds available RAM, requiring memory-efficient operations to perform interactive analysis without loading the entire dataset.