Phpml\NeuralNetwork\Network\MultilayerPerceptron::addBiasNodes PHP Method

    private function addBiasNodes()
    {
        $biasLayers = count($this->layers) - 1;
        for ($i = 0; $i < $biasLayers; ++$i) {
            $this->layers[$i]->addNode(new Bias());
        }
    }