fann_scale_train_data

(PECL fann >= 1.0.0)

fann_scale_train_data — Scales the inputs and outputs in the training data to the specified range

Description

fann_scale_train_data(resource $train_data, float $new_min, float $new_max): bool

Scales the inputs and outputs in the training data to the specified range.

Parameters

train_data: Neural network training data resource.
new_min: New minimum after scaling inputs and outputs in training data.
new_max: New maximum after scaling inputs and outputs in training data.

Return Values

Returns true on success, or false otherwise.

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User Contributed Notes

geekgirl dot joy at gmail dot com

3 years ago

<?php

// How to scale an existing unscaled training file and save it

$path = 'TrainingData' . DIRECTORY_SEPARATOR;

// Read raw (un-scaled) training data from file
$train_data = fann_read_train_from_file($path . "Training.data");

// Scale to a range of -1 to 1
fann_scale_train_data($train_data, -1, 1);

// Save the new scaled traning data as a file
fann_save_train($train_data, $path . 'ScaledTraining.data');