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---
name: splitting-datasets
description: Split datasets into training, validation, and testing sets for ML model
development. Use when requesting "split dataset", "train-test split", or "data partitioning".
allowed-tools: Read, Write, Edit, Grep, Glob, Bash
license: MIT
---
## Overview
This skill automates the process of dividing a dataset into subsets for training, validating, and testing machine learning models. It ensures proper data preparation and facilitates robust model evaluation.
## How It Works
1. **Analyze Request**: The skill analyzes the user's request to determine the dataset to be split and the desired proportions for each subset.
2. **Generate Code**: Based on the request, the skill generates Python code utilizing standard ML libraries to perform the data splitting.
3. **Execute Splitting**: The code is executed to split the dataset into training, validation, and testing sets according to the specified ratios.
## When to Use This Skill
This skill activates when you need to:
- Prepare a dataset for machine learning model training.
- Create training, validation, and testing sets.
- Partition data to evaluate model performance.
## Examples
### Example 1: Splitting a CSV file
User request: "Split the data in 'my_data.csv' into 70% training, 15% validation, and 15% testing sets."
The skill will:
1. Generate Python code to read the 'my_data.csv' file.
2. Execute the code to split the data according to the specified proportions, creating 'train.csv', 'validation.csv', and 'test.csv' files.
### Example 2: Creating a Train-Test Split
User request: "Create a train-test split of 'large_dataset.csv' with an 80/20 ratio."
The skill will:
1. Generate Python code to load 'large_dataset.csv'.
2. Execute the code to split the dataset into 80% training and 20% testing sets, saving them as 'train.csv' and 'test.csv'.
## Best Practices
- **Data Integrity**: Verify that the splitting process maintains the integrity of the data, ensuring no data loss or corruption.
- **Stratification**: Consider stratification when splitting imbalanced datasets to maintain class distributions in each subset.
- **Randomization**: Ensure the splitting process is randomized to avoid bias in the resulting datasets.
## Integration
This skill can be integrated with other data processing and model training tools within the Claude Code ecosystem to create a complete machine learning workflow.
