# Metric Calculator

> Compute well-defined metrics from existing formulas, datasets, or test outputs. Use as an explicit/manual helper when the metric definition is already known, not for choosing the overall analysis owner or dashboard strategy.

- Skill: `majiayu000/metric-calculator` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/metric-calculator`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/metric-calculator/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/metric-calculator

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# Metric Calculator

## Positioning

Treat this skill as an explicit/manual helper for narrow metric-computation work.

## When to Use

Use this skill when:
- Calculating a named business, statistical, or QA metric from available data
- Converting raw counts into rates, ratios, deltas, or scorecards
- Verifying that a metric formula is implemented consistently across outputs

## Not For / Boundaries

- Model evaluation strategy selection: use `evaluating-machine-learning-models`
- Full regression or causal analysis ownership: use `performing-regression-analysis`
- Chart design or presentation decisions: use `creating-data-visualizations`

## Typical Outputs

- Metric definitions and formulas
- Reproducible calculation steps
- Sanity checks for units, denominators, and aggregation scope

## Related Skills

- `evaluating-machine-learning-models` for ML benchmark metrics
- `creating-data-visualizations` after the numbers are finalized