def get_response_content(fs):
# read the query tree
query_tree = NewickIO.parse(fs.query, FelTree.NewickTree)
# read the reference tree
reference_tree = NewickIO.parse(fs.reference, FelTree.NewickTree)
# calculate the loss using the requested loss function
if fs.uniform:
loss_numerator = TreeComparison.get_split_distance(
query_tree, reference_tree)
elif fs.weighted:
loss_numerator = TreeComparison.get_weighted_split_distance(
query_tree, reference_tree)
# do the normalization if requested
if fs.normalize:
if fs.uniform:
loss_denominator = float(
TreeComparison.get_nontrivial_split_count(reference_tree))
elif fs.weighted:
loss_denominator = float(
TreeComparison.get_weighted_split_count(reference_tree))
else:
loss_denominator = 1
# return the response
if loss_denominator:
return str(loss_numerator / loss_denominator) + '\n'
else:
return 'normalization failed\n'
def get_response_content(fs):
# read the query tree
query_tree = NewickIO.parse(fs.query, FelTree.NewickTree)
# read the reference tree
reference_tree = NewickIO.parse(fs.reference, FelTree.NewickTree)
# calculate the loss using the requested loss function
if fs.uniform:
loss_numerator = TreeComparison.get_split_distance(
query_tree, reference_tree)
elif fs.weighted:
loss_numerator = TreeComparison.get_weighted_split_distance(
query_tree, reference_tree)
# do the normalization if requested
if fs.normalize:
if fs.uniform:
loss_denominator = float(
TreeComparison.get_nontrivial_split_count(reference_tree))
elif fs.weighted:
loss_denominator = float(
TreeComparison.get_weighted_split_count(reference_tree))
else:
loss_denominator = 1
# return the response
if loss_denominator:
return str(loss_numerator / loss_denominator) + '\n'
else:
return 'normalization failed\n'
def run(self, distance_matrices, ordered_names):
"""
This function stores the losses for each reconstruction.
@param distance_matrices: a sequence of distance matrices
@param ordered_names: order of taxa in the distance matrix
"""
if self.start_time is not None:
msg = 'each simulation object should be run only once'
raise HandlingError(msg)
if not distance_matrices:
raise HandlingErrror('no distance matrices were provided')
tip_name_set = set(node.name for node in self.original_tree.gen_tips())
if tip_name_set != set(ordered_names):
raise HandlingError('leaf name mismatch')
self.start_time = time.time()
# Define the reference tree and its maximum cost
# under different loss functions.
reference_tree = self.original_tree
max_error_count = TreeComparison.get_nontrivial_split_count(
reference_tree)
max_loss_value = TreeComparison.get_weighted_split_count(
reference_tree)
for distance_matrix in distance_matrices:
# create the tree builder
tree_builder = NeighborhoodJoining.TreeBuilder(
distance_matrix, ordered_names, self.splitter)
# set parameters of the validating tree builder
tree_builder.set_fallback_name(self.fallback_name)
# build the tree
try:
query_tree = tree_builder.build()
except NeighborhoodJoining.NeighborhoodJoiningError as e:
raise HandlingError(e)
# Note the number and weight of partition errors
# during the reconstruction.
error_count = TreeComparison.get_split_distance(
query_tree, reference_tree)
loss_value = TreeComparison.get_weighted_split_distance(
query_tree, reference_tree)
# make sure that the summary is internally consistent
assert error_count <= max_error_count, (error_count,
max_error_count)
assert loss_value <= max_loss_value, (loss_value, max_loss_value)
# save the reconstruction characteristics to use later
self.error_counts.append(error_count)
self.loss_values.append(loss_value)
self.max_error_counts.append(max_error_count)
self.max_loss_values.append(max_loss_value)
self.stop_time = time.time()
def run(self, distance_matrices, ordered_names):
"""
This function stores the losses for each reconstruction.
@param distance_matrices: a sequence of distance matrices
@param ordered_names: order of taxa in the distance matrix
"""
if self.start_time is not None:
msg = "each simulation object should be run only once"
raise HandlingError(msg)
if not distance_matrices:
raise HandlingErrror("no distance matrices were provided")
tip_name_set = set(node.name for node in self.original_tree.gen_tips())
if tip_name_set != set(ordered_names):
raise HandlingError("leaf name mismatch")
self.start_time = time.time()
# Define the reference tree and its maximum cost
# under different loss functions.
reference_tree = self.original_tree
max_error_count = TreeComparison.get_nontrivial_split_count(reference_tree)
max_loss_value = TreeComparison.get_weighted_split_count(reference_tree)
for distance_matrix in distance_matrices:
# create the tree builder
tree_builder = NeighborhoodJoining.TreeBuilder(distance_matrix, ordered_names, self.splitter)
# set parameters of the validating tree builder
tree_builder.set_fallback_name(self.fallback_name)
# build the tree
try:
query_tree = tree_builder.build()
except NeighborhoodJoining.NeighborhoodJoiningError as e:
raise HandlingError(e)
# Note the number and weight of partition errors
# during the reconstruction.
error_count = TreeComparison.get_split_distance(query_tree, reference_tree)
loss_value = TreeComparison.get_weighted_split_distance(query_tree, reference_tree)
# make sure that the summary is internally consistent
assert error_count <= max_error_count, (error_count, max_error_count)
assert loss_value <= max_loss_value, (loss_value, max_loss_value)
# save the reconstruction characteristics to use later
self.error_counts.append(error_count)
self.loss_values.append(loss_value)
self.max_error_counts.append(max_error_count)
self.max_loss_values.append(max_loss_value)
self.stop_time = time.time()
