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# WindowSummary
<a name="API_WindowSummary"></a>

The metrics for a time range within the evaluation portion of a dataset. This object is part of the [EvaluationResult](API_EvaluationResult.md) object.

The `TestWindowStart` and `TestWindowEnd` parameters are determined by the `BackTestWindowOffset` parameter of the [EvaluationParameters](API_EvaluationParameters.md) object.

## Contents
<a name="API_WindowSummary_Contents"></a>

 ** EvaluationType **   <a name="forecast-Type-WindowSummary-EvaluationType"></a>
The type of evaluation.  
+  `SUMMARY` - The average metrics across all windows.
+  `COMPUTED` - The metrics for the specified window.
Type: String  
Valid Values: `SUMMARY | COMPUTED`   
Required: No

 ** ItemCount **   <a name="forecast-Type-WindowSummary-ItemCount"></a>
The number of data points within the window.  
Type: Integer  
Required: No

 ** Metrics **   <a name="forecast-Type-WindowSummary-Metrics"></a>
Provides metrics used to evaluate the performance of a predictor.  
Type: [Metrics](API_Metrics.md) object  
Required: No

 ** TestWindowEnd **   <a name="forecast-Type-WindowSummary-TestWindowEnd"></a>
The timestamp that defines the end of the window.  
Type: Timestamp  
Required: No

 ** TestWindowStart **   <a name="forecast-Type-WindowSummary-TestWindowStart"></a>
The timestamp that defines the start of the window.  
Type: Timestamp  
Required: No

## See Also
<a name="API_WindowSummary_SeeAlso"></a>

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/forecast-2018-06-26/WindowSummary) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/forecast-2018-06-26/WindowSummary) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/forecast-2018-06-26/WindowSummary)