Normal.hpp

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#pragma once
 
#include <optional>
#include <vector>
 
#include "stats/Stats.hpp"
#include "utils/Types.hpp"
 
namespace ppforest2::stats {
  class Normal {
  private:
    types::Feature mean;
    types::Feature std_dev;
 
    std::optional<types::Feature> cached_z;

    double gen_unif01(RNG& rng);

    types::Feature denormalize(types::Feature z) const;
 
  public:
    Normal(types::Feature mean, types::Feature std_dev);

    types::Feature operator()(RNG& rng);

    std::vector<types::Feature> operator()(int count, RNG& rng);
  };
}