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csv-data-analyzer

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Load, explore, clean, and analyze CSV data with statistical summaries

skills/analysis/wrangling/csv-data-analyzer/SKILL.md

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# CSV Data Analyzer

A comprehensive skill for loading, exploring, cleaning, and analyzing CSV datasets within research workflows. Designed for researchers who need to quickly understand the structure, quality, and statistical properties of tabular data before conducting deeper analysis.

## Overview

Research datasets commonly arrive as CSV files from instrument exports, survey platforms, government repositories, and collaborator handoffs. This skill provides a structured approach to the entire CSV analysis pipeline: ingestion, profiling, quality assessment, cleaning, transformation, and summary statistics. It emphasizes reproducibility by generating audit logs of every transformation applied to the raw data.

The skill supports datasets of varying complexity, from single-table survey results to multi-file longitudinal study exports with hundreds of columns. It works with standard Python data science libraries (pandas, numpy, scipy) and produces outputs suitable for inclusion in methods sections and supplementary materials.

## Data Loading and Initial Profiling

### Loading Strategies
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