Eda

by argythana

data

Exploratory Data Analysis for tabular data. Use this skill when analyzing value distributions, checking for missing data, computing correlations, examining class balance, or generating data quality reports.

Skill Details


name: eda description: Exploratory Data Analysis for tabular data. Use this skill when analyzing value distributions, checking for missing data, computing correlations, examining class balance, or generating data quality reports.

Exploratory Data Analysis (EDA)

Analyze tabular datasets to understand distributions, data quality, and relationships between variables.

When to Use

  • Understanding a new dataset before modeling
  • Checking data quality (missing values, outliers, duplicates)
  • Analyzing target variable distribution for classification/regression
  • Identifying correlations between features
  • Generating summary statistics

Available Tasks

Task Command Description
Column Distribution eda-column-dist Analyze value distribution for a specific column

Task Documentation

Detailed task templates are available in tasks/:

  • tasks/column_distribution.md - Full documentation for column distribution analysis

Quick Start

# Analyze distribution of a column
eda-column-dist --source <path> --column <name>

# Save report to file
eda-column-dist --source <path> --column <name> --output report.md

Output Format

All EDA scripts produce markdown reports with:

  • Task metadata (source, column, timestamp)
  • Summary statistics
  • Distribution tables or visualizations (as text)
  • Observations and potential issues

Best Practices

  1. Start with data-connector - Verify data access and schema before EDA
  2. Check target variable first - Understand class balance for classification tasks
  3. Look for missing patterns - Missing data may not be random (MCAR/MAR/MNAR)
  4. Document findings - Save reports for reproducibility

Future Tasks (Planned)

  • Missing data analysis
  • Correlation matrix
  • Outlier detection
  • Duplicate detection
  • Target class balance
  • Full EDA report (combines all tasks)

Related Skills

Xlsx

Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas

data

Clickhouse Io

ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.

datacli

Clickhouse Io

ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.

datacli

Analyzing Financial Statements

This skill calculates key financial ratios and metrics from financial statement data for investment analysis

data

Data Storytelling

Transform data into compelling narratives using visualization, context, and persuasive structure. Use when presenting analytics to stakeholders, creating data reports, or building executive presentations.

data

Kpi Dashboard Design

Design effective KPI dashboards with metrics selection, visualization best practices, and real-time monitoring patterns. Use when building business dashboards, selecting metrics, or designing data visualization layouts.

designdata

Dbt Transformation Patterns

Master dbt (data build tool) for analytics engineering with model organization, testing, documentation, and incremental strategies. Use when building data transformations, creating data models, or implementing analytics engineering best practices.

testingdocumenttool

Sql Optimization Patterns

Master SQL query optimization, indexing strategies, and EXPLAIN analysis to dramatically improve database performance and eliminate slow queries. Use when debugging slow queries, designing database schemas, or optimizing application performance.

designdata

Anndata

This skill should be used when working with annotated data matrices in Python, particularly for single-cell genomics analysis, managing experimental measurements with metadata, or handling large-scale biological datasets. Use when tasks involve AnnData objects, h5ad files, single-cell RNA-seq data, or integration with scanpy/scverse tools.

arttooldata

Xlsx

Spreadsheet toolkit (.xlsx/.csv). Create/edit with formulas/formatting, analyze data, visualization, recalculate formulas, for spreadsheet processing and analysis.

tooldata

Skill Information

Category:Data
Last Updated:1/5/2026