# bindings-levmar: Low level bindings to the C levmar (Levenberg-Marquardt) library

See the `levmar`

package for a high-level wrapper
around this package.

The Levenberg-Marquardt algorithm is an iterative technique that finds a local minimum of a function that is expressed as the sum of squares of nonlinear functions. It has become a standard technique for nonlinear least-squares problems and can be thought of as a combination of steepest descent and the Gauss-Newton method. When the current solution is far from the correct one, the algorithm behaves like a steepest descent method: slow, but guaranteed to converge. When the current solution is close to the correct solution, it becomes a Gauss-Newton method.

Both unconstrained and constrained (under linear equations and box constraints) Levenberg-Marquardt variants are included. All functions have Double and Float variants.

Note that the included
C library
is lightly patched to make it pure. This way the
functions can be used inside `unsafePerformIO`

.

A note regarding the license:

All files EXCEPT those in the levmar-2.4 directory fall under the BSD3 license. The levmar C library, which is bundled with this binding, falls under the GPL. If you build a program which is linked with this binding then it is also linked with levmar. This means such a program can only by distributed under the terms of the GPL.

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Versions | 0.1, 0.1.0.1, 0.1.1, 0.1.1.1, 0.2.0.1, 1.0, 1.0.0.1, 1.0.0.2, 1.1, 1.1.0.1, 1.1.0.2, 1.1.0.3, 1.1.0.4 |
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Dependencies | base (>=3 && <4.11), bindings-DSL (>=1.0.15 && <1.1) [details] |

License | LicenseRef-OtherLicense |

Copyright | 2009–2012 Roel van Dijk & Bas van Dijk |

Author | Roel van Dijk <vandijk.roel@gmail.com> & Bas van Dijk <v.dijk.bas@gmail.com> |

Maintainer | Roel van Dijk <vandijk.roel@gmail.com> & Bas van Dijk <v.dijk.bas@gmail.com> |

Category | Numerical, FFI |

Home page | https://github.com/basvandijk/bindings-levmar |

Bug tracker | https://github.com/basvandijk/bindings-levmar/issues |

Source repo | head: git clone git://github.com/basvandijk/bindings-levmar.git |

Uploaded | by BasVanDijk at Mon May 29 21:11:12 UTC 2017 |

Distributions | NixOS:1.1.0.4 |

Downloads | 4823 total (11 in the last 30 days) |

Rating | (no votes yet) [estimated by rule of succession] |

Your Rating | |

Status | Docs available [build log] Last success reported on 2017-05-29 [all 1 reports] Hackage Matrix CI |

## Flags

Name | Description | Default | Type |
---|---|---|---|

mkl | Link with Intel's MKL optimized libraries. | Disabled | Manual |

accelerate | Use the accelerate framework for LAPACK/BLAS on OS X | Disabled | Manual |

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

## Downloads

- bindings-levmar-1.1.0.4.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)