regression_test_util.hpp File Reference

#include <cstdlib>
#include <cmath>
#include <cfloat>
#include <utility>
#include <vector>
#include <string>
#include <algorithm>
#include "jubatus/util/math/random.h"

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Functions
std::pair< float, std::vector< double > >	gen_random_data (float mu, float sigma, size_t dim)
void	make_gaussian_random (float mu, float sigma, size_t dim, std::vector< double > &v)
void	make_random (size_t dim, std::vector< double > &v)

Function Documentation

std::pair<float, std::vector<double> > gen_random_data	(	float	mu,
		float	sigma,
		size_t	dim
	)

Definition at line 49 of file regression_test_util.hpp.

References make_gaussian_random(), and make_random().

                {
  std::pair<float, std::vector<double> > p;

  std::vector<double> coef;
  make_random(dim, coef);
  make_gaussian_random(mu, sigma, dim , p.second);
  for (size_t i = 0; i < dim; i++) {
    p.first += p.second[i] * coef[i];
  }
  return p;
}

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void make_gaussian_random	(	float	mu,
		float	sigma,
		size_t	dim,
		std::vector< double > &	v
	)

Definition at line 29 of file regression_test_util.hpp.

Referenced by gen_random_data().

                          {
  jubatus::util::math::random::mtrand rand(0);
  for (size_t i = 0; i < dim; i++) {
    float value = rand.next_gaussian(mu, sigma);
    v.push_back(value);
  }
}

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void make_random	(	size_t	dim,
		std::vector< double > &	v
	)

Definition at line 41 of file regression_test_util.hpp.

Referenced by gen_random_data().

                                                   {
  jubatus::util::math::random::mtrand rand(0);
  for (size_t i = 0; i < dim; i++) {
    double value = rand.next_double();
    v.push_back(value);
  }
}

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