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iDQ: Add support for using idq as a gate on hoft

Rachael Huxford requested to merge master-idq-gating into master

Note: This MR must occur after support for the streaming of iDQ frames has been merged from this MR

These code changes add support for optional use of the integrated timeseries of iDQ as a gate on hoft.

Using iDQ as a gate has preliminarily shown to be effective from these ROC curves. More testing will need to be done to decide exactly which settings are best for use in combination with the existing hoft self gating scheme.

The major changes are:

  1. condition.py - adding relevant code path for option idq gate on hoft in mkcondition. Allows for both idq and hoft gating if desired.

The minor changes are:

  1. gstlal_inspiral - adding pass-through option of the idq-gate-threshold
  2. lloidhandler - adding idq_gate as an option in SegmentsTracker
  3. gstlal-inspiral/python/dags/layers/inspiral.py - fetching idq-gate-threshold from config and passing to dag.
Edited by Rachael Huxford

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