> ## Documentation Index
> Fetch the complete documentation index at: https://docs.custral.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Line Chart

> Trend over time.

<Frame caption="A line chart plotting two series over six months.">
  <img src="https://mintcdn.com/custral/NGCdls_pt-1YDx5S/images/charts/line.png?fit=max&auto=format&n=NGCdls_pt-1YDx5S&q=85&s=ac57d8205a01a4ef1953b83b6556ffe8" alt="A line chart plotting two series over six months." width="760" height="420" data-path="images/charts/line.png" />
</Frame>

## When to use

Line charts are the right tool for "how did X change over time" questions. Use them for deal velocity, ticket throughput, NPS over weeks: any continuous trend.

## Required data shape

* **X axis**: a date or ordered numeric property.
* **Y axis**: a numeric or aggregated property.
* **Group (optional)**: select property; each group becomes its own line.

## Configuration

| Setting     | What it does                                                        |
| ----------- | ------------------------------------------------------------------- |
| X-axis      | The date or ordered property plotted along the horizontal axis.     |
| Y-axis      | The numeric value (or aggregation) plotted along the vertical axis. |
| Group by    | An optional property whose values each become their own line.       |
| Time bucket | How dates are grouped: hour, day, week, or month.                   |

## Limitations

* More than \~5 series in one chart becomes hard to follow. Use Composite or split charts.
* Sparse data leaves visual gaps; consider Area for cumulative views.


## Related topics

- [Area Chart](/bi/reporting/charts/area.md)
- [Sparkline](/bi/reporting/charts/sparkline.md)
- [Stat card](/bi/reporting/stat-card.md)
- [Assemble a support inbox](/recipes/support-inbox.md)
- [Composite Chart](/bi/reporting/charts/composite.md)