Function shuffle_samples_and_labels

examples/slm_basic_train_ex.cpp:72–91

Function to shuffle samples and labels in sync

// Function to shuffle samples and labels in sync
void shuffle_samples_and_labels(std::vector<matrix<int, 0, 1>>& samples, std::vector<unsigned long>& labels) {
    std::vector<size_t> indices(samples.size());
    std::iota(indices.begin(), indices.end(), 0); // Fill with 0, 1, 2, ..., N-1
    std::shuffle(indices.begin(), indices.end(), std::default_random_engine{});

    // Create temporary vectors to hold shuffled data
    std::vector<matrix<int, 0, 1>> shuffled_samples(samples.size());
    std::vector<unsigned long> shuffled_labels(labels.size());

    // Apply the shuffle
    for (size_t i = 0; i < indices.size(); ++i)
    {
        shuffled_samples[i] = samples[indices[i]];
        shuffled_labels[i] = labels[indices[i]];
    }

    // Replace the original data with shuffled data
    samples = std::move(shuffled_samples);
    labels = std::move(shuffled_labels);
}

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