---
name: "dt_utils.hpp"
section: "3"
platform: "linux"
package: "mlpack-doc"
version: "1.0.10-1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/dt_utils.hpp"
---

# dt\_utils.hpp(3)

## NAME

src/mlpack/methods/det/dt\_utils.hpp -

## SYNOPSIS

### Namespaces

 **mlpack**\
 *Linear algebra utility functions, generally performed on matrices or vectors.*   **mlpack::det**\
 *Density Estimation Trees.*

### Functions

void **mlpack::det::PrintLeafMembership** (DTree \*dtree, const arma::mat &data, const arma::Mat\< size\_t \> &labels, const size\_t numClasses, const std::string leafClassMembershipFile='')\
 *Print the membership of leaves of a density estimation tree given the labels and number of classes.*  void **mlpack::det::PrintVariableImportance** (const DTree \*dtree, const std::string viFile='')\
 *Print the variable importance of each dimension of a density estimation tree.*  DTree \* **mlpack::det::Trainer** (arma::mat &dataset, const size\_t folds, const bool useVolumeReg=false, const size\_t maxLeafSize=10, const size\_t minLeafSize=5, const std::string unprunedTreeOutput='')\
 *Train the optimal decision tree using cross-validation with the given number of folds.*

## Detailed Description

**Author:**

Parikshit Ram (pram@cc.gatech.edu)

This file implements functions to perform different tasks with the Density Tree class.

This file is part of MLPACK 1.0.10.

MLPACK is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

MLPACK is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details (LICENSE.txt).

You should have received a copy of the GNU General Public License along with MLPACK. If not, see http://www.gnu.org/licenses/.

Definition in file **dt\_utils.hpp**.

## Author

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