Split

---
name: "split"
version: "1.0.0"
description: "Data splitting techniques and strategies reference — partitioning datasets, string splitting, file splitting, and ML train/test splits. Use when dividing data, chunking files, or designing data partitioning strategies."
author: "BytesAgain"
homepage: "https://bytesagain.com"
source: "https://github.com/bytesagain/ai-skills"
tags: [split, partition, chunk, divide, data-processing, tokenize, atomic]
category: "atomic"
---

# Split — Data Splitting Reference

Quick-reference skill for data splitting techniques, partitioning strategies, and practical patterns.

## When to Use

- Splitting strings by delimiters, patterns, or fixed widths
- Partitioning datasets for ML training/validation/test
- Dividing large files into manageable chunks
- Database sharding and horizontal partitioning
- Understanding split strategies for distributed systems

## Commands

### `intro`

```bash
scripts/script.sh intro
```

Overview of data splitting — concepts, common use cases, and terminology.

### `string`

```bash
scripts/script.sh string
```

String splitting techniques — delimiters, regex, fixed-width, tokenization.

### `file`

```bash
scripts/script.sh file
```

File splitting methods — by size, lines, patterns, and round-robin.

### `dataset`

```bash
scripts/script.sh dataset
```

ML dataset splitting — train/val/test, stratified, time-series, k-fold.

### `database`

```bash
scripts/script.sh database
```

Database partitioning — horizontal, vertical, hash, range, and list.

### `strategies`

```bash
scripts/script.sh strategies
```

Splitting strategies for distributed systems — consistent hashing, sharding keys.

### `examples`

```bash
scripts/script.sh examples
```

Practical split examples across languages and tools.

### `pitfalls`

```bash
scripts/script.sh pitfalls
```

Common pitfalls and best practices when splitting data.

### `help`

```bash
scripts/script.sh help
```

### `version`

```bash
scripts/script.sh version
```

## Configuration

| Variable | Description |
|----------|-------------|
| `SPLIT_DIR` | Data directory (default: ~/.split/) |

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