Statistics::Descriptive::Smoother - phpMan

NAME
    Statistics::Descriptive::Smoother - Base module for smoothing
    statistical data

VERSION
    version 3.0800

SYNOPSIS
      use Statistics::Descriptive::Smoother;
      my $smoother = Statistics::Descriptive::Smoother->instantiate({
               method   => 'exponential',
               coeff    => 0.5,
               data     => [1, 2, 3, 4, 5],
               samples  => [110, 120, 130, 140, 150],
        });
      my @smoothed_data = $smoother->get_smoothed_data();

DESCRIPTION
    This module provide methods to smooth the trend of a series of
    statistical data.

    The methods provided are the "Exponential" and the "Weighted
    Exponential" (see respectively
    "Statistics::Descriptive::Smoother::Exponential" and
    "Statistics::Descriptive::Smoother::Weightedexponential" for more
    details).

    This class is just a factory that will instantiate the object to perform
    the chosen smoothing algorithm.

METHODS
    Statistics::Descriptive::Smoother->instantiate({});
         Create a new Smoother object.

         This method require several parameters:

         method
              Method used for the smoothing. Allowed values are:
              "exponential" and "weightedexponential"

         coeff
              Smoothing coefficient. It needs to be in the [0;1] range,
              otherwise undef will be reutrned. 0 means that the series is
              not smoothed at all, while 1 the series is universally equal
              to the initial unsmoothed value.

         data Array ref with the data of the series. At least 2 values are
              needed to smooth the series, undef is returned otherwise.

         samples
              Array ref with the samples each data value has been built
              with. This is an optional parameter since it is not used by
              all the smoothing algorithm.

    $smoother->get_smoothing_coeff();
         Returns the smoothing coefficient.

    $smoother->set_smoothing_coeff(0.5);
         Set the smoothing coefficient value. It needs to be in the [0;1]
         range, otherwise undef will be reutrned.

AUTHOR
    Fabio Ponciroli

COPYRIGHT
    Copyright(c) 2012 by Fabio Ponciroli.

LICENSE
    This file is licensed under the MIT/X11 License:
    http://www.opensource.org/licenses/mit-license.php.

    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the
    "Software"), to deal in the Software without restriction, including
    without limitation the rights to use, copy, modify, merge, publish,
    distribute, sublicense, and/or sell copies of the Software, and to
    permit persons to whom the Software is furnished to do so, subject to
    the following conditions:

    The above copyright notice and this permission notice shall be included
    in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

SUPPORT
  Websites
    The following websites have more information about this module, and may
    be of help to you. As always, in addition to those websites please use
    your favorite search engine to discover more resources.

    *   MetaCPAN

        A modern, open-source CPAN search engine, useful to view POD in HTML
        format.

        <https://metacpan.org/release/Statistics-Descriptive>

    *   RT: CPAN's Bug Tracker

        The RT ( Request Tracker ) website is the default bug/issue tracking
        system for CPAN.

        <https://rt.cpan.org/Public/Dist/Display.html?Name=Statistics-Descri
        ptive>

    *   CPANTS

        The CPANTS is a website that analyzes the Kwalitee ( code metrics )
        of a distribution.

        <http://cpants.cpanauthors.org/dist/Statistics-Descriptive>

    *   CPAN Testers

        The CPAN Testers is a network of smoke testers who run automated
        tests on uploaded CPAN distributions.

        <http://www.cpantesters.org/distro/S/Statistics-Descriptive>

    *   CPAN Testers Matrix

        The CPAN Testers Matrix is a website that provides a visual overview
        of the test results for a distribution on various Perls/platforms.

        <http://matrix.cpantesters.org/?dist=Statistics-Descriptive>

    *   CPAN Testers Dependencies

        The CPAN Testers Dependencies is a website that shows a chart of the
        test results of all dependencies for a distribution.

        <http://deps.cpantesters.org/?module=Statistics::Descriptive>

  Bugs / Feature Requests
    Please report any bugs or feature requests by email to
    "bug-statistics-descriptive at rt.cpan.org", or through the web
    interface at
    <https://rt.cpan.org/Public/Bug/Report.html?Queue=Statistics-Descriptive
    >. You will be automatically notified of any progress on the request by
    the system.

  Source Code
    The code is open to the world, and available for you to hack on. Please
    feel free to browse it and play with it, or whatever. If you want to
    contribute patches, please send me a diff or prod me to pull from your
    repository :)

    <https://github.com/shlomif/perl-Statistics-Descriptive>

      git clone git://github.com/shlomif/perl-Statistics-Descriptive.git

AUTHOR
    Shlomi Fish <shlomif AT cpan.org>

BUGS
    Please report any bugs or feature requests on the bugtracker website
    <https://github.com/shlomif/perl-Statistics-Descriptive/issues>

    When submitting a bug or request, please include a test-file or a patch
    to an existing test-file that illustrates the bug or desired feature.

COPYRIGHT AND LICENSE
    This software is copyright (c) 1997 by Jason Kastner, Andrea Spinelli,
    Colin Kuskie, and others.

    This is free software; you can redistribute it and/or modify it under
    the same terms as the Perl 5 programming language system itself.