fit.hpp

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// toolboxes/stats/include/nk/stats/fit/fit.hpp
//
// Distribution fitters and likelihood scoring (function-form).
 
#pragma once
 
#include <memory_resource>
#include <nk/value/value.hpp>
 
#include <tuple>
 
namespace nk::stats {

 


std::tuple<Value, Value, Value, Value>
normfit(const Value &x, double alpha,
        std::pmr::memory_resource *mr = nullptr);

std::tuple<Value, Value, Value, Value>
normfit(const Value &x, double alpha, const Value &cens, const Value &freq,
        std::pmr::memory_resource *mr = nullptr);

std::tuple<Value, Value>
poissfit(const Value &x, double alpha,
         std::pmr::memory_resource *mr = nullptr);

std::tuple<Value, Value>
expfit(const Value &x, double alpha,
       const Value &cens = Value::Empty, const Value &freq = Value::Empty,
       std::pmr::memory_resource *mr = nullptr);

std::tuple<Value, Value, Value, Value>
unifit(const Value &x, double alpha,
       std::pmr::memory_resource *mr = nullptr);

std::tuple<Value, Value>
lognfit(const Value &x, double alpha,
        std::pmr::memory_resource *mr = nullptr);

std::tuple<Value, Value>
lognfit(const Value &x, double alpha, const Value &cens, const Value &freq,
        std::pmr::memory_resource *mr = nullptr);

std::tuple<Value, Value>
binofit(const Value &x, const Value &n, double alpha,
        std::pmr::memory_resource *mr = nullptr);

std::tuple<Value, Value>
raylfit(const Value &x, double alpha,
        std::pmr::memory_resource *mr = nullptr);

double normlike(double mu, double sigma, const Value &x,
                const Value &cens, const Value &freq,
                std::pmr::memory_resource *mr = nullptr);

double explike(double mu, const Value &x,
               std::pmr::memory_resource *mr = nullptr);

double lognlike(double mu, double sigma, const Value &x,
                std::pmr::memory_resource *mr = nullptr);

double gamlike(double a, double b, const Value &x,
               std::pmr::memory_resource *mr = nullptr);

double betalike(double a, double b, const Value &x,
                std::pmr::memory_resource *mr = nullptr);

double wbllike(double a, double b, const Value &x,
               std::pmr::memory_resource *mr = nullptr);

double evlike(double mu, double sigma, const Value &x,
              std::pmr::memory_resource *mr = nullptr);

double gevlike(double k, double sigma, double mu, const Value &x,
               std::pmr::memory_resource *mr = nullptr);

double gplike(double k, double sigma, const Value &x,
              std::pmr::memory_resource *mr = nullptr);
 

} // namespace nk::stats