# TreeClassifierModel A trained tree classifier model. ``` struct TreeClassifierModel where Label : Hashable ``` ## Topics ### Getting the properties [`var classCount: Int`](/documentation/CreateMLComponents/TreeClassifierModel/classCount) The number of classes. [`var featureColumnNames: [String]`](/documentation/CreateMLComponents/TreeClassifierModel/featureColumnNames) The names of the columns containing feature values. [`var predictionColumnName: String`](/documentation/CreateMLComponents/TreeClassifierModel/predictionColumnName) The name of the column containing the predicted labels. ### Building a data frame [`func buildDataFrame([ClassificationDistribution]) -> DataFrame`](/documentation/CreateMLComponents/TreeClassifierModel/buildDataFrame(_:)) Builds a data frame containing a labels column and a probability distribution column. ### Applying [`func applied(to: DataFrame, eventHandler: EventHandler?) async throws -> DataFrame`](/documentation/CreateMLComponents/TreeClassifierModel/applied(to:eventHandler:)) Performs a classification on a data frame. ## Relationships ### Conforms To [`Escapable`](/documentation/Swift/Escapable) [`Transformer`](/documentation/CreateMLComponents/Transformer) [`Copyable`](/documentation/Swift/Copyable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`TabularTransformer`](/documentation/CreateMLComponents/TabularTransformer) [`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible) [`Sendable`](/documentation/Swift/Sendable) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)