data-analysis

Analyze CSV, Excel, or JSON datasets to extract statistics and generate charts.

Updated Apr 8, 2026
One-click install
npx skills add https://github.com/zm2231/personal-os-cowork --skill data-analysis-zm2231
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: data-analysis
Source: https://github.com/zm2231/personal-os-cowork/tree/main/.claude/skills/data-analysis
Command: npx skills add https://github.com/zm2231/personal-os-cowork --skill data-analysis-zm2231

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Many users struggle to extract meaningful statistics and visual patterns from raw datasets, spending excessive time on manual calculations and chart creation.

Core Features & Use Cases

  • Data Exploration: Load CSV, Excel, or JSON files, summarize statistics, detect missing values and outliers.
  • Statistical Testing: Perform t-tests, chi-square, ANOVA, correlation analyses with clear results.
  • Visualization: Generate histograms, scatter plots, bar charts, and line graphs to reveal trends.
  • Advanced Modeling: Build machine‑learning models for classification, regression, clustering, and forecasting.
  • Use Case Example: A marketing analyst uploads a sales CSV to instantly receive a report describing key trends, significant correlations, and predictive churn models.

Quick Start

Ask the data-analysis skill to explore and visualize your sales CSV file.

Frequently Asked Questions about data-analysis

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I get summary statistics and visualizations from a CSV file?

To get summary statistics and visualizations from a CSV file, you load the dataset to automatically detect missing values and outliers, then generate charts like histograms and scatter plots to reveal data trends.

Can I perform statistical hypothesis testing like t-tests and ANOVA on Excel data?

Yes, you can perform statistical hypothesis testing directly on Excel data. The analysis process applies t-tests, chi-square, ANOVA, and correlation analyses to your dataset to provide clear statistical results for research tasks.

What is the best way to build predictive models for customer churn using business analytics?

Building predictive models for customer churn using business analytics involves applying machine-learning classification and regression techniques to your dataset to forecast outcomes and identify significant correlations in customer behavior.

Does this data analysis approach support JSON files for business analytics?

Yes, this data analysis approach supports JSON files alongside CSV and Excel formats. It loads your JSON data to extract statistical insights, detect outliers, and generate visualizations for business analytics and decision-making.

How do I detect outliers and missing values when analyzing raw datasets?

To detect outliers and missing values when analyzing raw datasets, you load the data into the analysis environment which automatically summarizes statistics and flags anomalous entries to prepare the information for accurate visualization.

What types of charts can I generate to reveal trends in my dataset?

You can generate histograms, scatter plots, bar charts, and line graphs to reveal trends in your dataset. These visualizations transform raw data into clear insights for business analytics and decision-making.