So where does negative stat come from?

Notes: ./copy/compile/

bbh.hdf, bns.hdf, and nsbh.hdf are template banks

{bbh, bns, nsbh}_{H1, L1}.hdf is single detector triggers

extract/coincs/extract.py --> coincs.hdf

MERGER.hdf ---> COMBINE.hdf

compile/compile.ipynb --> combine events (coinc and single), add pastro, adjust IFAR