fann_subset_train_data

    (PECL fann >= 1.0.0)

    fann_subset_train_data — Returns an copy of a subset of the train data

    Açıklama

    fann_subset_train_data(resource $data, int $pos, int $length): resource

    Returns an copy of a subset of the train data resource, starting at position pos and length elements forward.

    The fann_subset_train_data(train_data, 0, fann_length_train_data(train_data)) do the same as fann_duplicate_train_data()

    Bağımsız Değişkenler

    data

    Sinir ağı eğitim verisi özkaynağı.

    pos

    Starting position.

    length

    The number of copied elements.

    Dönen Değerler

    Başarı durumunda eğitim verisi özkaynağı, on success, hata durumunda false döner.

    Ayrıca Bakınız

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    User Contributed Notes 1 note

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    geekgirl dot joy at gmail dot com
    5 years ago
    <?php
    // Use this code to split your data into smaller sets.
    // Useful for splitting your training data into training and testing groups

    // Load Data
    $data_file = "MyTrainingData.data";
    $train_data = fann_read_train_from_file(dirname(__FILE__) . DIRECTORY_SEPARATOR . $data_file);

    // Calculate how many examples are in the first group
    $total_length = fann_length_train_data($train_data);
    $a_length = floor($total_length / 10);

    // Split the subsets
    $training_data_a = fann_subset_train_data($train_data, 0, $a_length);
    $training_data_b = fann_subset_train_data($train_data, $a_length, $total_length-$a_length);

    // Save the training data to separate files
    fann_save_train ($training_data_a, 'MyTrainingData_Subset_A.data'); // 1/10 of the training data
    fann_save_train ($training_data_b, 'MyTrainingData_Subset_B.data'); // 9/10 of the training data
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