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PHP fann_create_train_from_callback

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fann_create_train_from_callback

(PECL fann >= 1.0.0)

fann_create_train_from_callback — Creates the training data struct from a user supplied function

Description

resource fann_create_train_from_callback ( int $num_data , int $num_input , int $num_output , callable $user_function )

Creates the training data struct from a user supplied function. As the training data are numerable (data 1, data 2...), the user must write a function that receives the number of the training data set (input, output) and returns the set.

Parameters

num_data

The number of training data

num_input

The number of inputs per training data

num_output

The number of ouputs per training data

user_function

The user supplied function with following parameters:

  • num - The number of the training data set
  • num_input - The number of inputs per training data
  • num_output - The number of ouputs per training data

The function should return an associative array with keys input and output and two array values of input and output.

Return Values

Returns a train data resource on success, or FALSE on error.

Examples

Example #1 fann_create_train_from_callback() example

<?php
function create_train_callback($num_data, $num_input, $num_output) {
    return array(
        "input" => array_fill(0, $num_input, 1),
        "output" => array_fill(0, $num_output, 1),
    );
}

$num_data = 3;
$num_input = 2;
$num_output = 1;
$train_data = fann_create_train_from_callback($num_data, $num_input, $num_output, "create_train_callback");
if ($train_data) {
    // Do something with $train_data
}
?>

See Also