public String getAggregationFunction() {
        return this.aggregationFunction;
    }
<p>
The aggregation function of the measure field.
</p>

@return The aggregation function of the measure field.
@see CategoricalAggregationFunction
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/CategoricalMeasureField.java