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NAME

Bio::Phylo - Phylogenetic analysis using perl.

SYNOPSIS

 # verbosity goes from 0, only fatal messages, to 4: everything from
 # fatal -> error -> warning -> info -> debug (which is a lot)
 use Bio::Phylo verbose => 1;

DESCRIPTION

This is the base class for the Bio::Phylo package. Most other modules inherit from it, the methods defined here are applicable to them. Consult the manual for usage examples: Bio::Phylo::Manual.

METHODS

CONSTRUCTOR

new()

The Bio::Phylo object itself, and thus its constructor, is rarely, if ever, used directly. Rather, all other objects in this package inherit its methods, and call its constructor internally. The arguments shown here can thus also be passed to any of the child classes' constructors, which will pass them on up the inheritance tree.

 Type    : Constructor
 Title   : new
 Usage   : my $phylo = Bio::Phylo->new;
 Function: Instantiates Bio::Phylo object
 Returns : a Bio::Phylo object
 Args    : -name    => (object name)
           -desc    => (object description)
           -score   => (numerical score)
           -generic => (generic key/value pair, hash ref)

MUTATORS

set_name()
 Type    : Mutator
 Title   : set_name
 Usage   : $obj->set_name($name);
 Function: Assigns an object's name.
 Returns : Modified object.
 Args    : Argument must be a string, will be single 
           quoted if it contains [;|,|:\(|\)] 
           or spaces. Preceding and trailing spaces
           will be removed.
set_desc()
 Type    : Mutator
 Title   : set_desc
 Usage   : $obj->set_desc($desc);
 Function: Assigns an object's description.
 Returns : Modified object.
 Args    : Argument must be a string.
set_score()
 Type    : Mutator
 Title   : set_score
 Usage   : $obj->set_score($score);
 Function: Assigns an object's numerical score.
 Returns : Modified object.
 Args    : Argument must be any of
           perl's number formats, or undefined
           to reset score.
set_generic()
 Type    : Mutator
 Title   : set_generic
 Usage   : $obj->set_generic( %generic );
 Function: Assigns generic key/value pairs to the invocant.
 Returns : Modified object.
 Args    : Valid arguments constitute:

           * key/value pairs, for example:
             $obj->set_generic( '-lnl' => 0.87565 );

           * or a hash ref, for example:
             $obj->set_generic( { '-lnl' => 0.87565 } );

           * or nothing, to reset the stored hash, e.g.
                $obj->set_generic( );

ACCESSORS

get_name()
 Type    : Accessor
 Title   : get_name
 Usage   : my $name = $obj->get_name;
 Function: Returns the object's name (if none was set, the name
           is a combination of the $obj's class and its UID).
 Returns : A string
 Args    : None
get_desc()
 Type    : Accessor
 Title   : get_desc
 Usage   : my $desc = $obj->get_desc;
 Function: Returns the object's description (if any).
 Returns : A string
 Args    : None
get_score()
 Type    : Accessor
 Title   : get_score
 Usage   : my $score = $obj->get_score;
 Function: Returns the object's numerical score (if any).
 Returns : A number
 Args    : None
get_generic()
 Type    : Accessor
 Title   : get_generic
 Usage   : my $value = $obj->get_generic($key);
           or
           my %hash = %{ $obj->get_generic() };
 Function: Returns the object's generic data. If an
           argument is used, it is considered a key
           for which the associated value is returned.
           Without arguments, a reference to the whole
           hash is returned.
 Returns : A string or hash reference.
 Args    : None
get_id()
 Type    : Accessor
 Title   : get_id
 Usage   : my $id = $obj->get_id;
 Function: Returns the object's unique ID
 Returns : INT
 Args    : None

PACKAGE METHODS

get()

All objects in the package subclass the Bio::Phylo object, and so, for example, you can do $node->get('get_branch_length'); instead of $node->get_branch_length. This is a useful feature for listable objects especially, as they have the get_by_value method, which allows you to retrieve, for instance, a list of nodes whose branch length exceeds a certain value. That method (and get_by_regular_expression) uses this $obj->get method.

 Type    : Accessor
 Title   : get
 Usage   : my $treename = $tree->get('get_name');
 Function: Alternative syntax for safely accessing
           any of the object data; useful for
           interpolating runtime $vars.
 Returns : (context dependent)
 Args    : a SCALAR variable, e.g. $var = 'get_name';
debug()
 Type    : logging method
 Title   : debug
 Usage   : $object->debug( "debugging message" );
 Function: prints debugging message, depending on verbosity
 Returns : invocant
 Args    : logging message
info()
 Type    : logging method
 Title   : info
 Usage   : $object->info( "info message" );
 Function: prints info message, depending on verbosity
 Returns : invocant
 Args    : logging message
warn()
 Type    : logging method
 Title   : warn
 Usage   : $object->warn( "warning message" );
 Function: prints warning message, depending on verbosity
 Returns : invocant
 Args    : logging message
error()
 Type    : logging method
 Title   : error
 Usage   : $object->error( "error message" );
 Function: prints error message, depending on verbosity
 Returns : invocant
 Args    : logging message
fatal()
 Type    : logging method
 Title   : fatal
 Usage   : $object->fatal( "fatal message" );
 Function: prints fatal message, depending on verbosity
 Returns : invocant
 Args    : logging message
clone()
 Type    : Utility method
 Title   : clone
 Usage   : my $clone = $object->clone;
 Function: Creates a copy of the invocant object.
 Returns : A copy of the invocant.
 Args    : none.
 Comments: Currently not implemented
VERBOSE()

Getter and setter for the verbose level. This comes in five levels: 0 = only fatal messages (though, when something fatal happens, you'll most likely get an exception object), 1 = errors (hopefully recoverable), 2 = warnings (recoverable), 3 = info (useful diagnostics), 4 = debug (every method call)

 Type    : Accessor
 Title   : VERBOSE()
 Usage   : Bio::Phylo->VERBOSE( -level => $level )
 Function: Sets/gets verbose level
 Returns : Verbose level
 Args    : 0 <= $level && $level <= 4
 Comments:
CITATION()
 Type    : Accessor
 Title   : CITATION
 Usage   : $phylo->CITATION;
 Function: Returns suggested citation.
 Returns : Returns suggested citation.
 Args    : None
 Comments:
VERSION()
 Type    : Accessor
 Title   : VERSION
 Usage   : $phylo->VERSION;
 Function: Returns version number
           (including SVN revision number).
 Alias   :
 Returns : SCALAR
 Args    : NONE
 Comments:
to_xml()
 Type    : Format converter
 Title   : to_xml
 Usage   : my $xml = $obj->to_xml;
 Function: Returns an XML representation of the invocant object.
 Returns : SCALAR
 Args    : NONE

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

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

AUTHOR

Rutger Vos,

email: mailto://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 Vos, All Rights Reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.