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

# lmetric.hpp(3)

## NAME

src/mlpack/core/metrics/lmetric.hpp -

## SYNOPSIS

### Classes

class **mlpack::metric::LMetric\< Power, TakeRoot \>**\
 *The L\_p metric for arbitrary integer p, with an option to take the root.*

### Namespaces

 **mlpack**\
 *Linear algebra utility functions, generally performed on matrices or vectors.*   **mlpack::metric**\

### Typedefs

typedef LMetric\< INT\_MAX, false \> **mlpack::metric::ChebyshevDistance**\
 typedef LMetric\< 2, true \> **mlpack::metric::EuclideanDistance**\
 typedef LMetric\< 1, false \> **mlpack::metric::ManhattanDistance**\
 typedef LMetric\< 2, false \> **mlpack::metric::SquaredEuclideanDistance**\

## Detailed Description

**Author:**

Ryan Curtin

Generalized L-metric, allowing both squared distances to be returned as well as non-squared distances. The squared distances are faster to compute.

This also gives several convenience typedefs for commonly used L-metrics.

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 **lmetric.hpp**.

## Author

Generated automatically by Doxygen for MLPACK from the source code.