fit statistics with extra term to avoid division by zero; (#186)
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closes #181 Co-authored-by: Dominik Demuth <dominik.demuth@physik.tu-darmstadt.de> Reviewed-on: #186
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@ -157,15 +157,12 @@ class FitResultCreator:
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'chi^2': chi,
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'R^2': r,
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'AIC': loglikehood + 2 * nvar,
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'BIC': loglikehood + np.log(nobs) * nvar
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'BIC': loglikehood + np.log(nobs) * nvar,
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'adj. R^2': 1 - (nobs-1) / (dof+1e-13) * (1-r),
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'red. chi^2': chi / (dof + 1e-13),
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}
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if dof != 0:
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stats['adj. R^2'] = 1 - (nobs-1)/dof * (1-r)
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stats['red. chi^2'] = chi / dof if dof != 0 else 0
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if dof != 1:
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stats['AICc'] = stats['AIC'] + 2*(nvar+1)*nvar / (dof-1)
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stats['AICc'] = stats['AIC'] + 2*(nvar+1)*nvar / (dof - 1 + 1e-13)
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return stats
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