/ 
bioperl-1.5.2_004-RCb
/ Bio::Tree::TreeI

NAME

Bio::Tree::TreeI - A Tree object suitable for lots of things, designed originally for Phylogenetic Trees.

SYNOPSIS

# get a Bio::Tree::TreeI somehow
# like from a TreeIO
my $treeio = new Bio::TreeIO(-format => 'newick', -file => 'treefile.dnd');
my $tree   = $treeio->next_tree;
my @nodes  = $tree->get_nodes;
my @leaves = $tree->get_leaf_nodes;
my $root   = $tree->get_root_node;

DESCRIPTION

This object holds a pointer to the Root of a Tree which is a Bio::Tree::NodeI.

FEEDBACK

Mailing Lists

User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to the Bioperl mailing list. Your participation is much appreciated.

bioperl-l@bioperl.org                  - General discussion
http://bioperl.org/wiki/Mailing_lists  - About the mailing lists

Reporting Bugs

Report bugs to the Bioperl bug tracking system to help us keep track of the bugs and their resolution. Bug reports can be submitted via the web:

http://bugzilla.open-bio.org/

AUTHOR - Jason Stajich

Email jason@bioperl.org

CONTRIBUTORS

Aaron Mackey, amackey@virginia.edu Elia Stupka, elia@fugu-sg.org Sendu Bala, bix@sendu.me.uk

APPENDIX

The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _

get_nodes

Title   : get_nodes
Usage   : my @nodes = $tree->get_nodes()
Function: Return list of Tree::NodeI objects
Returns : array of Tree::NodeI objects
Args    : (named values) hash with one value 
          order => 'b|breadth' first order or 'd|depth' first order

get_root_node

Title   : get_root_node
Usage   : my $node = $tree->get_root_node();
Function: Get the Top Node in the tree, in this implementation
          Trees only have one top node.
Returns : Bio::Tree::NodeI object
Args    : none

number_nodes

Title   : number_nodes
Usage   : my $size = $tree->number_nodes
Function: Find the number of nodes in the tree.
Returns : int
Args    : none

total_branch_length

Title   : total_branch_length
Usage   : my $size = $tree->total_branch_length
Function: Returns the sum of the length of all branches
Returns : integer
Args    : none

height

Title   : height
Usage   : my $height = $tree->height
Function: Gets the height of tree - this LOG_2($number_nodes)
          WARNING: this is only true for strict binary trees.  The TreeIO
          system is capable of building non-binary trees, for which this
          method will currently return an incorrect value!!
Returns : integer
Args    : none

id

Title   : id
Usage   : my $id = $tree->id();
Function: An id value for the tree
Returns : scalar
Args    :

score

Title   : score
Usage   : $obj->score($newval)
Function: Sets the associated score with this tree
          This is a generic slot which is probably best used 
          for log likelihood or other overall tree score
Returns : value of score
Args    : newvalue (optional)

get_leaf_nodes

Title   : get_leaf_nodes
Usage   : my @leaves = $tree->get_leaf_nodes()
Function: Returns the leaves (tips) of the tree
Returns : Array of Bio::Tree::NodeI objects
Args    : none