41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/* This file contains functions to perform
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* statistical tests on the points sampled
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* from a Landau distribution.
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*/
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#include <gsl/gsl_roots.h>
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#pragma once
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/* Kolmogorov distribution CDF
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* for sample size n and statistic D
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*/
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double kolmogorov_cdf(double D, int n);
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/* Numerically computes the mode of a Landau
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* distribution by maximising the derivative.
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* The `min,max` parameters are the initial search
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* interval for the optimisation.
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*
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* If `err` is true print the estimate error.
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*/
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double numeric_mode(double min, double max,
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gsl_function *pdf,
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int err);
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/* Numerically computes the FWHM of a PDF
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* distribution using the definition.
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* The `min,max` parameters are the initial search
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* interval for the root search of equation
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* `fwhm_equation`. Two searches are performed in
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* [min, mode] and [mode, max] that will give the
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* two solutions x₋, x₊. The FWHM is then x₊-x₋.
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*
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* If `err` is true print the estimate error.
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*/
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double numeric_fwhm(double min, double max,
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gsl_function *pdf,
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int err);
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