Commit 67ec2ae7 authored by Kipp Cannon's avatar Kipp Cannon

TimeSlideGraphNode: identify zero-lag nodes

- pre-record a boolean indicating which nodes have all-zero offset vectors so this doesn't have to be checked in loops in calling codes.
parent 608f08f3
......@@ -504,6 +504,9 @@ class TimeSlideGraphNode(object):
# time_slide_id non-None only in head nodes
self.time_slide_id = time_slide_id
self.offset_vector = offset_vector
# not used here, but helpful to calling codes to avoid
# repeating this test inside loops
self.is_zero_lag = not any(offset_vector.values())
# keep_partial is part of the logic that ensures we only
# return coincs that meet the min_instruments criterion
self.keep_partial = len(offset_vector) > min_instruments
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