Author image Daniel S. T. Hughes


Statistics::MVA - Base module/Dependency for other modules in Statistics::MVA namespace.


This document describes Statistics::MVA version 0.0.2


This module is a base module for the other modules in the Statistics::MVA namespace (e.g. Statistics::MVA::Bartlett, Statistics::MVA::Hotelling etc.). It is not intended for direct use - though it may be used for generating covariance matrices directly.

This set of modules is still very much in development. Please let me know if you find any bugs.

The constructor accepts an array containing a series of List-of-Lists (LoL) references and returns an object of the form (modified output from Data::TreeDraw):

      |__ARRAY REFERENCE (1) [ '->[0]' ]     
      |    |  
      |    |__ARRAY REFERENCE (2) [ '->[0][0]' ]
      |    |    |  
      |    |    |__BLESSED OBJECT BELONGING TO CLASS: Math::MatrixReal (3)  [ '->[0][0][0]' ]    
      |    |    |  MatrixReal object containing covariance matrix for first LoL passed.
      |    |    |  
      |    |    |__SCALAR = '7' (3)  [ '->[0][0][1]' ]                                           
      |    |    |  p for first LoL.
      |    |    |  
      |    |    |__ARRAY REFERENCE (3) [ '->[0][0][2]' ]
      |    |       LoL of the raw data passed.
      |    |  
      |    Continues for all other LoLs refs passed.
      |__SCALAR = '3' (1)  [ '->[1]' ]                                                          
      |  k.
      |__SCALAR = '3' (1)  [ '->[2]' ]                                                       
      |  Overall p - i.e. only allows completes if all individual p´s are equal.
      |__SCALAR = '0' (1)  [ '->[3]' ]                                                          
      |  Value of standardise option.
      |__SCALAR = '1' (1)  [ '->[4]' ]                                                         
         Value of divisor option.


'Carp' => '1.08', 'Math::MatrixReal' => '2.05',


Let me know.


Daniel S. T. Hughes <>


Copyright (c) 2010, Daniel S. T. Hughes <>. All rights reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.


Because this software is licensed free of charge, there is no warranty for the software, to the extent permitted by applicable law. Except when otherwise stated in writing the copyright holders and/or other parties provide the software "as is" without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The entire risk as to the quality and performance of the software is with you. Should the software prove defective, you assume the cost of all necessary servicing, repair, or correction.

In no event unless required by applicable law or agreed to in writing will any copyright holder, or any other party who may modify and/or redistribute the software as permitted by the above licence, be liable to you for damages, including any general, special, incidental, or consequential damages arising out of the use or inability to use the software (including but not limited to loss of data or data being rendered inaccurate or losses sustained by you or third parties or a failure of the software to operate with any other software), even if such holder or other party has been advised of the possibility of such damages. =CUT

1 POD Error

The following errors were encountered while parsing the POD:

Around line 58:

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