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# AWS::CleanRooms::AnalysisTemplate SyntheticDataColumnProperties
<a name="aws-properties-cleanrooms-analysistemplate-syntheticdatacolumnproperties"></a>

Properties that define how a specific data column should be handled during synthetic data generation, including its name, type, and role in predictive modeling.

## Syntax
<a name="aws-properties-cleanrooms-analysistemplate-syntheticdatacolumnproperties-syntax"></a>

To declare this entity in your Amazon CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-cleanrooms-analysistemplate-syntheticdatacolumnproperties-syntax.json"></a>

```
{
  "[ColumnName](#cfn-cleanrooms-analysistemplate-syntheticdatacolumnproperties-columnname)" : {{String}},
  "[ColumnType](#cfn-cleanrooms-analysistemplate-syntheticdatacolumnproperties-columntype)" : {{String}},
  "[IsPredictiveValue](#cfn-cleanrooms-analysistemplate-syntheticdatacolumnproperties-ispredictivevalue)" : {{Boolean}}
}
```

### YAML
<a name="aws-properties-cleanrooms-analysistemplate-syntheticdatacolumnproperties-syntax.yaml"></a>

```
  [ColumnName](#cfn-cleanrooms-analysistemplate-syntheticdatacolumnproperties-columnname): {{String}}
  [ColumnType](#cfn-cleanrooms-analysistemplate-syntheticdatacolumnproperties-columntype): {{String}}
  [IsPredictiveValue](#cfn-cleanrooms-analysistemplate-syntheticdatacolumnproperties-ispredictivevalue): {{Boolean}}
```

## Properties
<a name="aws-properties-cleanrooms-analysistemplate-syntheticdatacolumnproperties-properties"></a>

`ColumnName`  <a name="cfn-cleanrooms-analysistemplate-syntheticdatacolumnproperties-columnname"></a>
The name of the data column as it appears in the dataset.  
*Required*: Yes  
*Type*: String  
*Pattern*: `^[a-z0-9_](([a-z0-9_]+-)*([a-z0-9_]+))?$`  
*Maximum*: `128`  
*Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`ColumnType`  <a name="cfn-cleanrooms-analysistemplate-syntheticdatacolumnproperties-columntype"></a>
The data type of the column, which determines how the synthetic data generation algorithm processes and synthesizes values for this column.  
*Required*: Yes  
*Type*: String  
*Allowed values*: `CATEGORICAL | NUMERICAL`  
*Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`IsPredictiveValue`  <a name="cfn-cleanrooms-analysistemplate-syntheticdatacolumnproperties-ispredictivevalue"></a>
Indicates if this column contains predictive values that should be treated as target variables in machine learning models. This affects how the synthetic data generation preserves statistical relationships.  
*Required*: Yes  
*Type*: Boolean  
*Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)