def systUncert(self, combFunc=add_hist_quad, systNames=None):
if systNames == None:
systNames = self._systs.keys()
hsystuncert = self._nom.Clone()
hsystuncert.Reset()
for k in systNames:
h = self._systs[k].Clone()
hist_subtract(h, self._nom)
hsystuncert = combFunc(hsystuncert, h)
return hsystuncert
def systUncert(self, combFunc=add_hist_quad,
systNames=None):
if systNames == None:
systNames = self._systs.keys()
hnom = self.nomHist()
hsystuncert = hnom.Clone()
hsystuncert.Reset()
d = self.systHists(systNames=systNames)
for k in systNames:
h = d[k].Clone()
hist_subtract(h, hnom)
hsystuncert = combFunc(hsystuncert, h)
continue
return hsystuncert