def write_graph(self, output_dir, coin):
"""
Creates an igraph based on the data collected so far and writes to the output_dir.
"""
utils.write_network(
output_dir, coin, self.vertex_names, self.edge_weights, args.directed_network, args.csv_output
)
def write_graph(self, output_dir, coin):
"""
Creates an igraph based on the data collected so far and writes to the output_dir.
"""
utils.write_network(output_dir, coin, self.vertex_names,
self.edge_weights, args.directed_network,
args.csv_output)
# Set the prev_date to the first day in the data.
if prev_date is None:
prev_date = datetime.date(date_time.year, date_time.month, date_time.day)
# only if decay factor is non negative, decay all the edge weights
new_date = date_time.date() != prev_date
# Taking snapshots per day or mentioned coin? We will take a snapshot as
# soon as we observe a new date. This should also happen before we decay the edges
# for the new date, because the snapshot corresponds to the end of the previous date
# where the edges did had not decayed yet.
# Snapshots are taken at the END OF PREVIOUS day. So date 2014-02-02 network
# represents whatever discussion up to end of 2014-02-01. Same is true for a coin
# whose earliest trade in on 2014-02-02, its network only contains interactions up
# to end of 2014-02-01 (beginning of 2014-02-02).
if new_date:
utils.write_network(output_dir, str(date_time.date()), vertex_names,
edge_weights, args.directed_network, args.csv_output)
# Now that we took a snapshot of the networks from previous date, we can decay
# edges.
if decay_factor > 0:
utils.decay_edges(edge_weights, decay_factor)
# update the date now that we have checked for new date.
prev_date = datetime.date(date_time.year, date_time.month, date_time.day)
# Update total activity on subject so far so that we can assign the right edge
# weight for new contributors in the subject.
new_subject = full_subject_id not in subject_activity
subject_activity[full_subject_id] += 1
# add user to graph if not added yet.
prev_date = datetime.date(date_time.year, date_time.month,
date_time.day)
# only if decay factor is non negative, decay all the edge weights
new_date = date_time.date() != prev_date
# Taking snapshots per day or mentioned coin? We will take a snapshot as
# soon as we observe a new date. This should also happen before we decay the edges
# for the new date, because the snapshot corresponds to the end of the previous date
# where the edges did had not decayed yet.
# Snapshots are taken at the END OF PREVIOUS day. So date 2014-02-02 network
# represents whatever discussion up to end of 2014-02-01. Same is true for a coin
# whose earliest trade in on 2014-02-02, its network only contains interactions up
# to end of 2014-02-01 (beginning of 2014-02-02).
if new_date:
utils.write_network(output_dir, str(date_time.date()),
vertex_names, edge_weights,
args.directed_network, args.csv_output)
# Now that we took a snapshot of the networks from previous date, we can decay
# edges.
if decay_factor > 0:
utils.decay_edges(edge_weights, decay_factor)
# update the date now that we have checked for new date.
prev_date = datetime.date(date_time.year, date_time.month,
date_time.day)
# Update total activity on subject so far so that we can assign the right edge
# weight for new contributors in the subject.
new_subject = full_subject_id not in subject_activity
subject_activity[full_subject_id] += 1
