OEM pdf health fix pt2

gstlal-inspiral/python/far.py

@@ -571,6 +571,12 @@ class RankingStatPDF(object):
 			raise ValueError("cannot be initialized from a RankingStat that is not for a specific set of templates")
 		self.template_ids = rankingstat.template_ids
 
+		# the sum of noise counts may change due to first-round-extinction,
+		# so store the sum of counts before extinction in a different variable.
+		# This will be used for checking the health of the PDF
+		self.noise_counts_before_extinction = 0
+
+
 		#
 		# bailout used by codes that want all-zeros histograms
 		#
@@ -638,10 +644,6 @@ class RankingStatPDF(object):
 		self.noise_lr_lnpdf.normalize()
 		self.signal_lr_lnpdf.array *= rankingstat.numerator.candidate_count_model() / self.signal_lr_lnpdf.array.sum()
 		self.signal_lr_lnpdf.normalize()
-
-		# the sum of noise counts may change due to first-round-extinction,
-		# so store the sum of counts before extinction in a different variable.
-		# This will be used for checking the health of the PDF
 		self.noise_counts_before_extinction = self.noise_lr_lnpdf.array.sum()