# Related metrics

The **Related** helper answers: “Given this chart, what else should I look at?”

It is **client-side** ranking (taxonomy + optional Pearson on loaded series + alert-weight boost). It does **not** replace [Metric Correlations](./metric-correlations.md).

## How to open

- Click **⇢** on a chart card, or  
- **Double-click** the card (also expands stats)

A panel lists ranked chart ids with short reasons (e.g. same context, high correlation). Click a row to scroll to that card. **Clear** or **Esc** dismisses.

## Scoring (summary)

| Signal | Effect |
|--------|--------|
| Same / related context, family, plugin, units | Taxonomy boost |
| Pearson \|r\| on already-loaded wall series | Series similarity (needs enough points on both cards) |
| Alert weights (`getWeights` without a highlight window) | Boost currently noisy charts |

Pearson only runs on charts **already fetched** for the wall (visible / nearby). Taxonomy still ranks the full catalog.

## Correlate vs Related

| | Correlate | Related |
|--|-----------|---------|
| Question | What **changed** vs baseline? | What is **similar / nearby**? |
| Where | Toolbar **Correlate** | Card **⇢** |
| Engine | Server weights (`volume` / `ks2` / …) | Desktop `related-metrics.js` |