# DataPrepAggregationFunction
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Defines the type of aggregation function to apply to data during data preparation, supporting simple and list aggregations.

## Contents
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**Note**  
In the following list, the required parameters are described first.

 ** ListAggregation **   <a name="QS-Type-DataPrepAggregationFunction-ListAggregation"></a>
A list aggregation function that concatenates values from multiple rows into a single delimited string.  
Type: [DataPrepListAggregationFunction](API_DataPrepListAggregationFunction.md) object  
Required: No

 ** SimpleAggregation **   <a name="QS-Type-DataPrepAggregationFunction-SimpleAggregation"></a>
A simple aggregation function such as `SUM`, `COUNT`, `AVERAGE`, `MIN`, `MAX`, `MEDIAN`, `VARIANCE`, or `STANDARD_DEVIATION`.  
Type: [DataPrepSimpleAggregationFunction](API_DataPrepSimpleAggregationFunction.md) object  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/quicksight-2018-04-01/DataPrepAggregationFunction) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/quicksight-2018-04-01/DataPrepAggregationFunction) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/quicksight-2018-04-01/DataPrepAggregationFunction)