PDA.hpp

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#pragma once
 
#include "models/strategies/pp/ProjectionPursuit.hpp"
#include "models/strategies/Strategy.hpp"
#include "utils/Types.hpp"
 
namespace ppforest2::pp {
  class PDA : public ProjectionPursuit {
  public:
    explicit PDA(float lambda);
 
    static ProjectionPursuit::Ptr from_json(nlohmann::json const& j);
 
    nlohmann::json to_json() const override;
 
    std::string display_name() const override { return lambda == 0 ? "LDA" : "PDA"; }
 
    std::set<types::Mode> supported_modes() const override {
      return {types::Mode::Classification, types::Mode::Regression};
    }
 
    PPFOREST2_REGISTER_STRATEGY(ProjectionPursuit, "pda")
    PPFOREST2_REGISTER_PRIMARY_PARAM("pda", "lambda")
 
  protected:
    void compute(NodeContext& ctx, stats::RNG& rng) const override;
 
  private:
    float const lambda;
  };
}