Slot: operator
The aggregation function to apply (for example SUM, AVERAGE, COUNT).
URI: [linkmlmap:operator](https://w3id.org/linkml/transformer/operator)
## Applicable Classes
| Name | Description | Modifies Slot |
| --- | --- | --- |
| [AggregationOperation](AggregationOperation.md) | An operation that reduces multiple input values to a single value using an ag... | no |
## Properties
### Type and Range
| Property | Value |
| --- | --- |
| Range | [AggregationType](AggregationType.md) |
| Domain Of | [AggregationOperation](AggregationOperation.md) |
### Cardinality and Requirements
| Property | Value |
| --- | --- |
| Required | Yes |
### Slot Characteristics
| Property | Value |
| --- | --- |
| Owner | [AggregationOperation](AggregationOperation.md) |
## Identifier and Mapping Information
### Schema Source
* from schema: https://w3id.org/linkml/transformer
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | linkmlmap:operator |
| native | linkmlmap:operator |
## LinkML Source
name: operator
description: The aggregation function to apply (for example SUM, AVERAGE, COUNT).
from_schema: https://w3id.org/linkml/transformer
rank: 1000
owner: AggregationOperation
domain_of:
- AggregationOperation
range: AggregationType
required: true