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-rwxr-xr-xutils/chi213
-rwxr-xr-xutils/sddm/plot_energy.py2
2 files changed, 7 insertions, 8 deletions
diff --git a/utils/chi2 b/utils/chi2
index 4515b91..3b519e2 100755
--- a/utils/chi2
+++ b/utils/chi2
@@ -110,14 +110,11 @@ def make_nll(data, mc_hists):
nll = 0
for id in data_hists:
- N = data_hists[id].sum()
- nll -= poisson.logpmf(N,mc_hists[id].sum()*x[0])
- if N > 0:
- p = mc_hists[id]/mc_hists[id].sum()
- # Fix a bug in scipy(). See https://github.com/scipy/scipy/issues/8235 (I think).
- p += 1e-10
- p /= p.sum()
- nll -= multinomial.logpmf(data_hists[id],N,p)
+ oi = data_hists[id].sum()
+ ei = mc_hists[id] + EPSILON
+ N = oi.sum()
+ n = ei.sum()
+ nll -= -N - np.sum(gammaln(oi+1)) + np.sum(oi*np.log(ei))
return nll - norm.logpdf(x[1],ENERGY_SCALE_MEAN,ENERGY_SCALE_UNCERTAINTY)
return nll
diff --git a/utils/sddm/plot_energy.py b/utils/sddm/plot_energy.py
index 84a7094..a4b7005 100755
--- a/utils/sddm/plot_energy.py
+++ b/utils/sddm/plot_energy.py
@@ -23,6 +23,8 @@ from . import grouper, print_warning, AV_RADIUS, PSUP_RADIUS, read_hdf
import pandas as pd
from scipy.misc import logsumexp
+EPSILON = 1e-10
+
def lnfact(n):
return gammaln(n+1)