**Math::GSL - Perl interface to the GNU Scientific Library (GSL)**

LETO/Math-GSL-0.39 - 01 Oct 2016 06:46:47 GMT - Search in distribution

- Math::GSL::SF - Special Functions
- Math::GSL::SF - Special Functions
- Math::GSL::Sum - Sum series with the Levin u-transform
- 102 more results from Math-GSL »

**Math::GSL::Linalg::SVD - Perl extension with convenience methods for performing SVD and eigenvector decomp with the gsl C libraries.**

The singular value decomposition (SVD) is an important factorization of a rectangular real matrix - see http://en.wikipedia.org/wiki/Singular_value_decomposition. Eigendecomposition is the factorization of a matrix into a canonical form, whereby the ...

DSTH/Math-GSL-Linalg-SVD-0.0.2 - 14 Dec 2009 13:38:44 GMT - Search in distribution**Math::Matrix::MaybeGSL - Uniform use of Math::MatrixReal and Math::GSL::Matrix.**

This module interfaces with "Math::GSL::Matrix" or, if that is not available, "Math::MatrixReal". The idea behind this module is to allow the development of tools that use matrices that will work in pure Perl (using "Math::MatrixReal") or with extra ...

AMBS/Math-Matrix-MaybeGSL-0.007 - 28 Dec 2014 20:16:57 GMT - Search in distribution**PDL::Func - interpolation, integration, & gradient estimation (differentiation) of functions**

This module aims to contain useful functions. Honest....

CHM/PDL-2.017 - 08 Oct 2016 17:56:44 GMT - Search in distribution- PDL::MatrixOps - Some Useful Matrix Operations
- PDL::Course - A journey through PDL's documentation, from beginner to advanced.
- PDL::Index - an index of PDL documentation

**PDLA::Func - interpolation, integration, & gradient estimation (differentiation) of functions**

This module aims to contain useful functions. Honest....

ETJ/PDLA-2.013003 - 29 Aug 2015 21:31:45 GMT - Search in distribution- PDLA::Course - A journey through PDLA's documentation, from beginner to advanced.
- PDLA::Index - an index of PDLA documentation

**PDLA::MatrixOps - Some Useful Matrix Operations**

PDLA::MatrixOps is PDLA's built-in matrix manipulation code. It contains utilities for many common matrix operations: inversion, determinant finding, eigenvalue/vector finding, singular value decomposition, etc. PDLA::MatrixOps routines are written i...

ETJ/PDLA-Core-2.013006 - 30 Aug 2015 14:37:59 GMT - Search in distribution- PDLA::Course - A journey through PDLA's documentation, from beginner to advanced.
- PDLA::Index - an index of PDLA documentation

**PerlGSL - A Collection of Perlish Interfaces to the Gnu Scientific Library**

PerlGSL defines both a namespace (with certain goals) and a distribution. The aim is to flexibly and modularly provide the GSL to Perl....

JBERGER/PerlGSL-0.002 - 24 May 2012 16:07:49 GMT - Search in distribution**PDL::NDBin - Multidimensional binning & histogramming**

In scientific (and other) applications, it is frequently necessary to classify a series of values in a number of bins. For instance, particles may be classified according to particle size in a number of bins of, say, 0.01 mm wide, yielding a histogra...

EBAUDREZ/PDL-NDBin-0.018 - 15 Sep 2015 13:51:26 GMT - Search in distribution**Algorithm::LinearManifoldDataClusterer - for clustering data that resides on a low-dimensional manifold in a high-dimensional measurement space**

If you are new to machine learning and data clustering on linear and nonlinear manifolds, your first question is likely to be: What is a manifold? A manifold is a space that is locally Euclidean. And a space is locally Euclidean if it allows for the ...

AVIKAK/Algorithm-LinearManifoldDataClusterer-1.01 - 09 Jan 2015 18:39:55 GMT - Search in distribution**Algorithm::ExpectationMaximization - A Perl module for clustering numerical multi-dimensional data with the Expectation-Maximization algorithm.**

Algorithm::ExpectationMaximization is a *perl5* module for the Expectation-Maximization (EM) method of clustering numerical data that lends itself to modeling as a Gaussian mixture. Since the module is entirely in Perl (in the sense that it is not a ...

AVIKAK/Algorithm-ExpectationMaximization-1.22 - 11 Dec 2014 15:38:37 GMT - Search in distribution**Algorithm::KMeans - for clustering multidimensional data**

Clustering with K-Means takes place iteratively and involves two steps: 1) assignment of data samples to clusters on the basis of how far the data samples are from the cluster centers; and 2) Recalculation of the cluster centers (and cluster covarian...

AVIKAK/Algorithm-KMeans-2.05 - 12 Dec 2014 01:48:47 GMT - Search in distribution**Statistics::Multtest - Control false discovery rate in multiple test problem**

For statistical test, p-value is the probability of false positives. While there are many hypothesis for testing simultaneously, the probability of getting at least one false positive would be large. Therefore the origin p-values should be adjusted t...

JOKERGOO/Statistics-Multtest-0.13 - 28 Apr 2012 03:10:32 GMT - Search in distribution**Alien::GSL - Easy installation of the GSL library**

Provides the Gnu Scientific Library (GSL) for use by Perl modules, installing it if necessary. This module relies heavily on the Alien::Base system to do so. To avoid documentation skew, the author asks the reader to learn about the capabilities prov...

JBERGER/Alien-GSL-1.00 - 30 May 2015 15:30:37 GMT - Search in distribution**Math::Counting - Combinatorial counting operations**

Compute the factorial, number of permutations, number of derangements and number of combinations. The ":big" functions are wrappers around "bfac" in Math::BigInt with a bit of arithmetic between. The student versions exist to illustrate the computati...

GENE/Math-Counting-0.1305 - 20 Oct 2015 02:48:29 GMT - Search in distribution**Bio::Community::Alpha - Calculate the alpha diversity of a community**

The Bio::Community::Alpha module calculates alpha diversity, i.e. the diversity contained within a community. Higer alpha diversity values indicate more diverse communities....

FANGLY/Bio-Community-0.001008 - 08 Jan 2016 20:06:45 GMT - Search in distribution- Bio::Community::Role::PRNG - Role for objects that use a pseudo-random number generator
- Bio::Community::Tools::Sampler - Sample organisms according to their abundance

**Algorithm::GoldenSection - Golden Section Search Algorithm for one-dimensional minimisation.**

This module is an implementation of the Golden Section Search Algorithm for finding minima of a unimodal function. In order to isolate a minimum of a univariate functions the minimum must first be isolated. Consequently the program first bounds a min...

DSTH/Algorithm-GoldenSection-0.0.2 - 14 Jan 2010 00:27:25 GMT - Search in distribution**Math::Vector::Real - Real vector arithmetic in Perl**

A simple pure perl module to manipulate vectors of any dimension. The function "V", always exported by the module, allows one to create new vectors: my $v = V(0, 1, 3, -1); Vectors are represented as blessed array references. It is allowed to manipul...

SALVA/Math-Vector-Real-0.17 - 14 Apr 2015 11:31:09 GMT - Search in distribution**PerlGSL::DiffEq - A Perlish Interface to Solving ODEs using GSL v1.15+**

This module provides a Perl-ish interface to the Gnu Scientific Library's (GSL <http://www.gnu.org/software/gsl/>) ODEIV2 library, (documentation <http://www.gnu.org/software/gsl/manual/html_node/Ordinary-Differential- Equations.html>). This library ...

JBERGER/PerlGSL-DiffEq-0.08 - 09 May 2012 20:09:14 GMT - Search in distribution**Statistics::PCA::Varimax - A Perl implementation of Varimax rotation.**

Varimax rotation is a change of coordinates used in principal component analysis and factor analysis that maximizes the sum of the variances of the squared loadings matrix. This module exports a single routine 'rotate'. This routine is called in LIST...

DSTH/Statistics-PCA-Varimax-0.0-2 - 16 Dec 2009 16:21:41 GMT - Search in distribution**Statistics::FactorAnalysis - A Perl implementation of Factor Analysis using the Principal Component Method.**

Factor analysis is a statistical method by which the variability of a large set of observed variables is described in terms of a smaller set of unobserved variables termed factors. Factor analysis uses the premise that data observed from such a large...

DSTH/Statistics-FactorAnalysis-0.0-2 - 18 Dec 2009 00:38:34 GMT - Search in distribution