Excel Variance Analyzer
This skill automatically calculates and interprets variances in your Excel data, revealing key insights for informed decision-making.
Install on your platform
We auto-selected Claude Code based on this skill’s supported platforms.
Run in terminal (recommended)
claude mcp add jeremylongshore-excel-variance-analyzer npx -- -y @trustedskills/jeremylongshore-excel-variance-analyzer
Or manually add to ~/.claude/settings.json
{
"mcpServers": {
"jeremylongshore-excel-variance-analyzer": {
"command": "npx",
"args": [
"-y",
"@trustedskills/jeremylongshore-excel-variance-analyzer"
]
}
}
}Requires Claude Code (claude CLI). Run claude --version to verify your install.
About This Skill
What it does
This skill analyzes data in Excel spreadsheets and calculates variance. It can determine the variance of a single column or multiple columns within an Excel file, providing insights into data dispersion. The tool supports both sample and population variance calculations based on user specification.
When to use it
- Financial Analysis: Calculate the volatility of stock prices recorded in an Excel sheet.
- Scientific Research: Determine the variability within a dataset collected from experiments stored in a spreadsheet.
- Quality Control: Assess the consistency of measurements taken during manufacturing processes, documented in Excel.
- Statistical Reporting: Generate variance metrics for inclusion in reports based on data residing in an Excel file.
Key capabilities
- Calculates sample variance.
- Calculates population variance.
- Supports multiple columns within a spreadsheet.
- Handles data stored in Excel files.
Example prompts
- "Calculate the population variance of column B in 'sales_data.xlsx'."
- "What is the sample variance for columns A and C in my file named 'customer_survey.xls'?"
- "Analyze 'production_metrics.csv' and give me the variance of the 'temperature' column, using the sample method."
Tips & gotchas
- The skill requires a valid Excel (.xlsx or .xls) file as input. Ensure the file path is correct for proper processing.
Tags
TrustedSkills Verification
Unlike other registries that point to live repositories, TrustedSkills pins every skill to a verified commit hash. This protects you from malicious updates — what you install today is exactly what was reviewed and verified.
Security Audits
| Gen Agent Trust Hub | Pass |
| Socket | Pass |
| Snyk | Pass |
🌐 Community
Passed automated security scans.