# aggregate

Calendar heatmap: how several entries on one day fold — `sum`, `max`, `min`, `mean`, `last`.

Canonical: https://chart.syidax.com/docs/options/aggregate/

<a id="definition"></a>

## Definition

| Item | Value |
| --- | --- |
| JavaScript property | `aggregate` |
| HTML attribute | `aggregate` |
| Type | `CalendarAggregate` |
| Default | `undefined` |
| Allowed values | `sum`, `max`, `min`, `mean`, `last` |

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

- [CalendarAggregate](https://chart.syidax.com/docs/types/CalendarAggregate.md) — Type definition

<a id="related"></a>

## Related documentation

A property with the same name may have different types and defaults across charts. When using a direct tag, follow that chart's documentation below.

- [Shared facade and direct tags](https://chart.syidax.com/docs/concepts.md)
- [sy-calendar-heatmap](https://chart.syidax.com/docs/components/calendar-heatmap.md#property-aggregate)