GoodnessOfFit.hpp

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#ifndef COMPWA_TOOLS_GOF_HPP_
#define COMPWA_TOOLS_GOF_HPP_

#include <cmath>

inline double calculateAIC(double LH, int sampleSize, int nFreePar) {
  // Classic AIC
  double aic = 2.0 * LH + 2.0 * nFreePar;
  // AICc is a modified version which includes the sample size
  aic += 2.0 * (nFreePar * nFreePar + nFreePar) / (sampleSize - nFreePar - 1);
  return aic;
}

inline double calculateBIC(double LH, int sampleSize, int nFreePar) {
  return std::log(sampleSize) * nFreePar + 2.0 * LH;
}
#endif