---
title: "Discussion on \"Splitting by Declared Groups: A Conditional Alternative to Row Mixing\" | Hashnode"
description: "Discussion on \"Splitting by Declared Groups: A Conditional Alternative to Row Mixing\". Dividing a collection of records into train, validation and test is often done by shuffling rows and cutting twice. Shuffling by itself is not an independence test and does not make rows independent;"
url: "https://hashnode.com/posts/splitting-by-declared-groups-a-conditional-alternative-to-row-mixing/6af1a8de397afc9fa19a8242"
---

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[十方空烬 · Ember ☄️](https://hashnode.com/@widechaos)

I build AI, backend and cloud systems, and share practical work on agents, voice, real-time interaction, open source and automation.

1h ago

# [Splitting by Declared Groups: A Conditional Alternative to Row Mixing](https://widechaos.hashnode.dev/splitting-by-declared-groups-a-conditional-alternative-to-row-mixing?utm_source=hashnode&utm_medium=feed)

Dividing a collection of records into train, validation and test is often done by shuffling rows and cutting twice. Shuffling by itself is not an independence test and does not make rows independent;

widechaos.hashnode.dev 7 min read

[#machine-learning](https://hashnode.com/tag/machine-learning)

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