# FinalHyperParameterTuningJobObjectiveMetric
<a name="API_FinalHyperParameterTuningJobObjectiveMetric"></a>

Shows the latest objective metric emitted by a training job that was launched by a hyperparameter tuning job. You define the objective metric in the `HyperParameterTuningJobObjective` parameter of [HyperParameterTuningJobConfig](https://docs.aws.amazon.com/sagemaker/latest/APIReference/API_HyperParameterTuningJobConfig.html).

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

 ** MetricName **   <a name="sagemaker-Type-FinalHyperParameterTuningJobObjectiveMetric-MetricName"></a>
The name of the objective metric. For SageMaker built-in algorithms, metrics are defined per algorithm. See the [metrics for XGBoost](https://docs.aws.amazon.com/sagemaker/latest/dg/xgboost-tuning.html) as an example. You can also use a custom algorithm for training and define your own metrics. For more information, see [Define metrics and environment variables](https://docs.aws.amazon.com/sagemaker/latest/dg/automatic-model-tuning-define-metrics-variables.html).  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 255.  
Pattern: `.+`   
Required: Yes

 ** Value **   <a name="sagemaker-Type-FinalHyperParameterTuningJobObjectiveMetric-Value"></a>
The value of the objective metric.  
Type: Float  
Required: Yes

 ** Type **   <a name="sagemaker-Type-FinalHyperParameterTuningJobObjectiveMetric-Type"></a>
Select if you want to minimize or maximize the objective metric during hyperparameter tuning.   
Type: String  
Valid Values: `Maximize | Minimize`   
Required: No

## See Also
<a name="API_FinalHyperParameterTuningJobObjectiveMetric_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/sagemaker-2017-07-24/FinalHyperParameterTuningJobObjectiveMetric) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/sagemaker-2017-07-24/FinalHyperParameterTuningJobObjectiveMetric) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/sagemaker-2017-07-24/FinalHyperParameterTuningJobObjectiveMetric)