# DefaultCategoricalHyperParameterRange
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Provides the name and default range of a categorical hyperparameter and whether the hyperparameter is tunable. A tunable hyperparameter can have its value determined during hyperparameter optimization (HPO).

## Contents
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 ** isTunable **   <a name="personalize-Type-DefaultCategoricalHyperParameterRange-isTunable"></a>
Whether the hyperparameter is tunable.  
Type: Boolean  
Required: No

 ** name **   <a name="personalize-Type-DefaultCategoricalHyperParameterRange-name"></a>
The name of the hyperparameter.  
Type: String  
Length Constraints: Maximum length of 256.  
Required: No

 ** values **   <a name="personalize-Type-DefaultCategoricalHyperParameterRange-values"></a>
A list of the categories for the hyperparameter.  
Type: Array of strings  
Array Members: Maximum number of 100 items.  
Length Constraints: Maximum length of 1000.  
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\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/personalize-2018-05-22/DefaultCategoricalHyperParameterRange) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/personalize-2018-05-22/DefaultCategoricalHyperParameterRange) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/personalize-2018-05-22/DefaultCategoricalHyperParameterRange) 

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Amazon Personalize. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query personalize` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).