random_utilities.h

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//   OpenNN: Open Neural Networks Library
//   www.opennn.net
//
//   R A N D O M   U T I L I T I E S
//
//   Artificial Intelligence Techniques, SL
//   artelnics artelnics.com
 
#pragma once
 
#include "pch.h"
 
namespace opennn
{
    void set_seed(unsigned seed);

    [[nodiscard]] long long get_seed();

    [[nodiscard]] float random_uniform(float = -1, float = 1);

    [[nodiscard]] Index random_integer(Index, Index);

    [[nodiscard]] bool random_bool(float = 0.5);

    void set_random_uniform(MatrixR&, float = -0.1, float = 0.1);

    void set_random_uniform(VectorMap, float = -0.1, float = 0.1);

    void set_random_normal(MatrixMap, float = 0, float = 1);

    void set_random_integer(MatrixR&, Index, Index);

    void shuffle(VectorB& vector_to_shuffle);

    template<typename T>
    void shuffle_vector(vector<T>&);

    void shuffle_vector_blocks(vector<Index>&, size_t = 20);

    [[nodiscard]] Index get_random_element(const vector<Index>&);

    [[nodiscard]] inline float glorot_limit(Index fan_in, Index fan_out)
    {
        return sqrt(6.0f / static_cast<float>(fan_in + fan_out));
    }
}
 
// OpenNN: Open Neural Networks Library.
// Copyright(C) 2005-2026 Artificial Intelligence Techniques, SL.
// Licensed under the GNU Lesser General Public License v2.1 or later.