(PECL fann >= 1.0.0)
fann_create_train_from_callback — Creates the training data struct from a user supplied function
$num_data,$num_input,$num_output,$user_functionCreates 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.
num_dataThe number of training data
num_inputThe number of inputs per training data
num_outputThe number of ouputs per training data
user_functionThe user supplied function with following parameters:
num - The number of the training data setnum_input - The number of inputs per training datanum_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.
Returns a train data resource on success, or false on error.
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
}
?>
Note:
This function is only available if the fann extension has been build against libfann >= 2.2.