from ete3 import TreeStyle
from ete3 import EvolTree
from ete3 import faces
tree = EvolTree("data/S_example/measuring_S_tree.nw")
tree.link_to_alignment('data/S_example/alignment_S_measuring_evol.fasta')
print(tree)
print('\n Running free-ratio model with calculation of ancestral sequences...')
tree.run_model('fb_anc')
#tree.link_to_evol_model('/tmp/ete3-codeml/fb_anc/out', 'fb_anc')
I = TreeStyle()
I.force_topology = False
I.draw_aligned_faces_as_table = True
I.draw_guiding_lines = True
I.guiding_lines_type = 2
I.guiding_lines_color = "#CCCCCC"
for n in sorted(tree.get_descendants() + [tree], key=lambda x: x.node_id):
if n.is_leaf(): continue
anc_face = faces.SequenceFace(n.sequence, 'aa', fsize=10, bg_colors={})
I.aligned_foot.add_face(anc_face, 1)
I.aligned_foot.add_face(
faces.TextFace('node_id: #%d ' % (n.node_id), fsize=8), 0)
print('display result of bs_anc model, with ancestral amino acid sequences.')
tree.show(tree_style=I)
print('\nThe End.')
print '\n---------\nNow working with leaf ' + leaf.name
tree.mark_tree([leaf.node_id], marks=['#1'])
print tree.write()
# to organize a bit, we name model with the name of the marked node
# any character after the dot, in model name, is not taken into account
# for computation. (have a look in /tmp/ete3.../bsA.. directory)
print 'running model bsA and bsA1'
tree.run_model('bsA.'+ leaf.name)
tree.run_model('bsA1.' + leaf.name)
print 'p-value of positive selection for sites on this branch is: '
ps = tree.get_most_likely('bsA.' + leaf.name, 'bsA1.'+ leaf.name)
rx = tree.get_most_likely('bsA1.'+ leaf.name, 'M0')
print str(ps)
print 'p-value of relaxation for sites on this branch is: '
print str(rx)
if ps < 0.05 and float(bsA.wfrg2a) > 1:
print 'we have positive selection on sites on this branch'
elif rx<0.05 and ps>=0.05:
print 'we have relaxation on sites on this branch'
else:
print 'no signal detected on this branch, best fit for M0'
print '\nclean tree, remove marks'
tree.mark_tree(map(lambda x: x.node_id, tree.get_descendants()),
marks=[''] * len(tree.get_descendants()), verbose=True)
# nothing working yet to get which sites are under positive selection/relaxation,
# have to look at the main outfile or rst outfile
print 'The End.'
from ete3 import faces
tree = EvolTree ("data/S_example/measuring_S_tree.nw")
tree.link_to_alignment ('data/S_example/alignment_S_measuring_evol.fasta')
print tree
print '\n Running free-ratio model with calculation of ancestral sequences...'
tree.run_model ('fb_anc')
#tree.link_to_evol_model('/tmp/ete3-codeml/fb_anc/out', 'fb_anc')
I = TreeStyle()
I.force_topology = False
I.draw_aligned_faces_as_table = True
I.draw_guiding_lines = True
I.guiding_lines_type = 2
I.guiding_lines_color = "#CCCCCC"
for n in sorted (tree.get_descendants()+[tree],
key=lambda x: x.node_id):
if n.is_leaf(): continue
anc_face = faces.SequenceFace (n.sequence, 'aa', fsize=10, bg_colors={})
I.aligned_foot.add_face(anc_face, 1)
I.aligned_foot.add_face(faces.TextFace('node_id: #%d '%(n.node_id),
fsize=8), 0)
print 'display result of bs_anc model, with ancestral amino acid sequences.'
tree.show(tree_style=I)
print '\nThe End.'