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fann_subset_train_data

(PECL fann >= 1.0.0)

fann_subset_train_dataReturns 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()

Değiştirgeler

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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geekgirl dot joy at gmail dot com
2 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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