Php/docs/function.fann-create-train-from-callback
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
fann_create_train_from_callback
( int $num_data
, int $num_input
, int $num_output
, callable $user_function
) : resource
Creates the training data struct from a user supplied function. As the training data are numerable (data 1, data 2...), the user must write a function that receives the number of the training data set (input, output) and returns the set.
Parameters
num_dataThe number of training data
num_inputThe number of inputs per training data
num_outputThe number of ouputs per training data
user_functionThe user supplied function with following parameters:
num- The number of the training data setnum_input- The number of inputs per training datanum_output- The number of ouputs per training data
The function should return an associative array with keys
inputandoutputand two array values of input and output.
Return Values
Returns a train data resource on success, or FALSE on error.
Examples
Example #1 fann_create_train_from_callback() example
<?phpfunction create_train_callback($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}?>
Notes
Note:
This function is only available if the fann extension has been build against libfann >= 2.2.
See Also
- fann_read_train_from_file() - Reads a file that stores training data
- fann_train_on_data() - Trains on an entire dataset for a period of time
- fann_destroy_train() - Destructs the training data
- fann_save_train() - Save the training structure to a file
