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#! /usr/bin/env python
##############################################################################
## DendroPy Phylogenetic Computing Library.
##
## Copyright 2010-2015 Jeet Sukumaran and Mark T. Holder.
## All rights reserved.
##
## See "LICENSE.rst" for terms and conditions of usage.
##
## If you use this work or any portion thereof in published work,
## please cite it as:
##
## Sukumaran, J. and M. T. Holder. 2010. DendroPy: a Python library
## for phylogenetic computing. Bioinformatics 26: 1569-1571.
##
##############################################################################
"""
Models and operations with tree shapes.
"""
import dendropy
##############################################################################
### Treeshape Generation
def star_tree(taxon_namespace, **kwargs):
"Builds and returns a star tree from the given taxa block."
star_tree = dendropy.Tree(taxon_namespace=taxon_namespace, **kwargs)
for taxon in taxon_namespace:
star_tree.seed_node.new_child(taxon=taxon)
return star_tree
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