Anteckning
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Describes how the associated column in the parent MiningStructure is used.
Syntax
<MiningModelColumn>
...
<Usage>...</Usage>
...
</MiningModelColumn>
Element Characteristics
| Characteristic | Description |
|---|---|
| Data type and length | String (enumeration) |
| Default value | None |
| Cardinality | 0-1: Optional element that can occur once and only once. |
Element Relationships
| Relationship | Element |
|---|---|
| Parent element | MiningModelColumn |
| Child elements | None |
Remarks
The value of this element is limited to one of the strings listed in the following table.
| Value | Description |
|---|---|
| Key | The column is a key column. |
| Input | The column is an input column. |
| Predict | The column is a prediction column. |
| PredictOnly | The column is a prediction column only. |
| None | The column is not used by the model. ** Warning ** When the value of Usage is "None", Analysis Services does not send any value to the server by default; hence, the Usage attribute is not included in the request/response. |
The enumeration that corresponds to the allowed values for Usage in the Analysis Management Objects (AMO) object model is MiningModelColumnUsages.