# Train Categories

You can use the `CategorySetTraining` action to train a category. Category training can consist of text, documents, a Boolean expression, category content, or a combination of these. These elements identify text, documents, agents, profiles, and other categories that match the category.

For example:

    action=CategorySetTraining&Category=323499876022105571056&DocID=238,785,9912&BuildNow=True

In this example, the IDOL Category component trains the category with the ID `323499876022105571056` using the content of the documents with the IDs `238`, `785`, and `9912`. The `BuildNow` parameter instructs Category to build the categories immediately, so that they become active. You can also activate the category at a later point by using the `CategoryBuild` action.

You can also train categories when you create them by assigning training action parameters to the `CategoryCreate` action.

NOTE: Categories that you create or import by using an action other than `CategoryCreate` are already trained. However, you can retrain them.

Related Topics

Build Categories

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