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ZH: figlib: stabilise chisquare calculation

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Eric-Teunis de Boone 2023-04-28 16:32:49 +02:00
parent 80cc240f23
commit 581b83ac5b
2 changed files with 7 additions and 1 deletions
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2
airshower_beacon_simulation/lib/figlib.py
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@ -245,6 +245,8 @@ def fitted_histogram_figure(
chisq_strs = []
if calc_chisq and cdf:
ct = np.diff(cdf(bins, *fit_params))*np.sum(counts)
if True: # stabilise the chisquare derivation
ct *= np.sum(counts)/np.sum(ct)
c2t = stats.chisquare(counts, ct, ddof=len(fit_params))
chisq_strs = [
f"$\\chi^2$/dof = {c2t[0]: .2g}/{len(fit_params)}"