NAME

Bio::Phylo::Matrices::Matrix - Character state matrix.

SYNOPSIS

use Bio::Phylo::Matrices::Matrix;
use Bio::Phylo::Taxa;
use Bio::Phylo::Taxa::Taxon;

# instantiate taxa object
my $taxa = Bio::Phylo::Taxa->new();
for ( 'Homo sapiens', 'Pan paniscus', 'Pan troglodytes' ) {
    $taxa->insert( Bio::Phylo::Taxa::Taxon->new( '-name' => $_ ) );
}

# instantiate matrix object
my $matrix = Bio::Phylo::Matrices::Matrix->new(
    '-taxa'   => $taxa,
    '-type'   => 'STANDARD',
    '-lookup' => { 
        '-' => [],
        '0' => [ '0' ],
        '1' => [ '1' ],
        '?' => [ '0', '1' ],
    },
    '-labels' => [ 'Opposable big toes', 'Opposable thumbs', 'Not a pygmy' ],
    '-matrix' => [
        [ 'Homo sapiens'    => '0', '1', '1' ],
        [ 'Pan paniscus'    => '1', '1', '0' ],
        [ 'Pan troglodytes' => '1', '1', '1' ],
    ],
);

DESCRIPTION

This module defines a container object that holds Bio::Phylo::Matrices::Datum objects. The matrix object inherits from Bio::Phylo::Listable, so the methods defined there apply here.

METHODS

CONSTRUCTOR

new()
Type    : Constructor
Title   : new
Usage   : my $matrix = Bio::Phylo::Matrices::Matrix->new;
Function: Instantiates a Bio::Phylo::Matrices::Matrix
          object.
Returns : A Bio::Phylo::Matrices::Matrix object.
Args    : -type   => required, datatype, one of dna|rna|protein|
                     continuous|standard|restriction|mixed => {}

          -taxa   => optional, link to taxa object
          -lookup => character state lookup hash ref
          -labels => array ref of character labels
          -matrix => two-dimensional array, first element of every
                     row is label, subsequent are characters

MUTATORS

set_charlabels()
Type    : Mutator
Title   : set_charlabels
Usage   : $matrix->set_charlabels( [ 'char1', 'char2', 'char3' ] );
Function: Assigns character labels.
Returns : $self
Args    : ARRAY, or nothing (to reset);
set_gapmode()
Type    : Mutator
Title   : set_gapmode
Usage   : $matrix->set_gapmode( 1 );
Function: Defines matrix gapmode ( false = missing, true = fifth state )
Returns : $self
Args    : boolean
set_matchchar()
Type    : Mutator
Title   : set_matchchar
Usage   : $matrix->set_matchchar( $match );
Function: Assigns match symbol (default is '.').
Returns : $self
Args    : ARRAY
set_polymorphism()
Type    : Mutator
Title   : set_polymorphism
Usage   : $matrix->set_polymorphism( 1 );
Function: Defines matrix 'polymorphism' interpretation
          ( false = uncertainty, true = polymorphism )
Returns : $self
Args    : boolean
set_raw()
Type    : Mutator
Title   : set_raw
Usage   : $matrix->set_raw( [ [ 'taxon1' => 'acgt' ], [ 'taxon2' => 'acgt' ] ] );
Function: Syntax sugar to define $matrix data contents.
Returns : $self
Args    : A two-dimensional array; first dimension contains matrix rows,
          second dimension contains taxon name / character string pair.
set_respectcase()
Type    : Mutator
Title   : set_respectcase
Usage   : $matrix->set_respectcase( 1 );
Function: Defines matrix case sensitivity interpretation
          ( false = disregarded, true = "respectcase" )
Returns : $self
Args    : boolean

ACCESSORS

get_charlabels()
Type    : Accessor
Title   : get_charlabels
Usage   : my @charlabels = @{ $matrix->get_charlabels };
Function: Retrieves character labels.
Returns : ARRAY
Args    : None.
get_gapmode()
Type    : Accessor
Title   : get_gapmode
Usage   : do_something() if $matrix->get_gapmode;
Function: Returns matrix gapmode ( false = missing, true = fifth state )
Returns : boolean
Args    : none
get_matchchar()
Type    : Accessor
Title   : get_matchchar
Usage   : my $char = $matrix->get_matchchar;
Function: Returns matrix match character (default is '.')
Returns : SCALAR
Args    : none
get_nchar()
Type    : Accessor
Title   : get_nchar
Usage   : my $nchar = $matrix->get_nchar;
Function: Calculates number of characters (columns) in matrix (if the matrix
          is non-rectangular, returns the length of the longest row).
Returns : INT
Args    : none
get_ntax()
Type    : Accessor
Title   : get_ntax
Usage   : my $ntax = $matrix->get_ntax;
Function: Calculates number of taxa (rows) in matrix
Returns : INT
Args    : none
get_polymorphism()
Type    : Accessor
Title   : get_polymorphism
Usage   : do_something() if $matrix->get_polymorphism;
Function: Returns matrix 'polymorphism' interpretation
          ( false = uncertainty, true = polymorphism )
Returns : boolean
Args    : none
get_raw()
Type    : Accessor
Title   : get_raw
Usage   : my $rawmatrix = $matrix->get_raw;
Function: Retrieves a 'raw' (two-dimensional array) representation
          of the matrix's contents.
Returns : A two-dimensional array; first dimension contains matrix rows,
          second dimension contains taxon name and characters.
Args    : NONE
get_respectcase()
Type    : Accessor
Title   : get_respectcase
Usage   : do_something() if $matrix->get_respectcase;
Function: Returns matrix case sensitivity interpretation
          ( false = disregarded, true = "respectcase" )
Returns : boolean
Args    : none

METHODS

to_nexus()
Type    : Format convertor
Title   : to_nexus
Usage   : my $data_block = $matrix->to_nexus;
Function: Converts matrix object into a nexus data block.
Returns : Nexus data block (SCALAR).
Args    : none
Comments:
insert()
Type    : Listable method
Title   : insert
Usage   : $matrix->insert($datum);
Function: Converts matrix object into a nexus data block.
Returns : Modified object
Args    : A datum object
Comments: This method re-implements the method by the same
          name in Bio::Phylo::Listable
validate()
Type    : Method
Title   : validate
Usage   : $obj->validate
Function: Validates the object's contents
Returns : True or throws Bio::Phylo::Util::Exceptions::InvalidData
Args    : None
Comments: This method implements the interface method by the same
          name in Bio::Phylo::Matrices::TypeSafeData
check_taxa()
Type    : Method
Title   : check_taxa
Usage   : $obj->check_taxa
Function: Validates relation between matrix and taxa block 
Returns : Modified object
Args    : None
Comments: This method implements the interface method by the same
          name in Bio::Phylo::Taxa::TaxaLinker

DESTRUCTOR

DESTROY()
Type    : Destructor
Title   : DESTROY
Usage   : $phylo->DESTROY
Function: Destroys Phylo object
Alias   :
Returns : TRUE
Args    : none
Comments: You don't really need this,
          it is called automatically when
          the object goes out of scope.

SEE ALSO

Bio::Phylo::Listable

This object inherits from Bio::Phylo::Listable, so the methods defined therein are also applicable to Bio::Phylo::Matrices::Matrix objects.

Bio::Phylo::Manual

Also see the manual: Bio::Phylo::Manual.

FORUM

CPAN hosts a discussion forum for Bio::Phylo. If you have trouble using this module the discussion forum is a good place to start posting questions (NOT bug reports, see below): http://www.cpanforum.com/dist/Bio-Phylo

BUGS

Please report any bugs or feature requests to bug-bio-phylo@rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Bio-Phylo. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes. Be sure to include the following in your request or comment, so that I know what version you're using:

$Id: Matrix.pm 3319 2007-03-20 01:39:35Z rvosa $

AUTHOR

Rutger A. Vos,

email: rvosa@sfu.ca
web page: http://www.sfu.ca/~rvosa/

ACKNOWLEDGEMENTS

The author would like to thank Jason Stajich for many ideas borrowed from BioPerl http://www.bioperl.org, and CIPRES http://www.phylo.org and FAB* http://www.sfu.ca/~fabstar for comments and requests.

COPYRIGHT & LICENSE

Copyright 2005 Rutger A. Vos, All Rights Reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.