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Statistics::Descriptive::SmoothUserpContributed Perl DocumeStatistics::Descriptive::Smoother(3pm)

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.

       o   MetaCPAN

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

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

       o   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-Descriptive>

       o   CPANTS

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

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

       o   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>

       o   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>

       o   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.

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