# Aggregation
<a name="API_Aggregation"></a>

Defines an aggregation function to be applied to grouped data, creating a new column with the calculated result.

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

 ** AggregationFunction **   <a name="QS-Type-Aggregation-AggregationFunction"></a>
The aggregation function to apply, such as `SUM`, `COUNT`, `AVERAGE`, `MIN`, `MAX`   
Type: [DataPrepAggregationFunction](API_DataPrepAggregationFunction.md) object  
Required: Yes

 ** NewColumnId **   <a name="QS-Type-Aggregation-NewColumnId"></a>
A unique identifier for the new column that will contain the aggregated values.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Required: Yes

 ** NewColumnName **   <a name="QS-Type-Aggregation-NewColumnName"></a>
The name for the new column that will contain the aggregated values.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Required: Yes

## 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/Aggregation) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/quicksight-2018-04-01/Aggregation) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/quicksight-2018-04-01/Aggregation)