Vaex

When to use

Use Vaex for columnar analysis on a single machine when data exceeds RAM, especially repeated reductions and histograms over local Vaex HDF5 or Arrow files. Expressions and virtual columns defer computation; reductions normally execute immediately. Out-of-core storage does not make every operation memory bounded: sorting, joins, large group dictionaries, materialization, and many estimator fits need substantial RAM.

Installation and verified scope

Use a separate environment; the repository's default Python is newer than this release supports: