Proyectos de Subversion Moodle

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<?php
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declare(strict_types=1);
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namespace Phpml\NeuralNetwork\Training\Backpropagation;
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use Phpml\NeuralNetwork\Node\Neuron;
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class Sigma
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{
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    /**
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     * @var Neuron
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     */
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    private $neuron;
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    /**
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     * @var float
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     */
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    private $sigma;
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    public function __construct(Neuron $neuron, float $sigma)
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    {
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        $this->neuron = $neuron;
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        $this->sigma = $sigma;
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    }
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    public function getNeuron(): Neuron
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    {
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        return $this->neuron;
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    }
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    public function getSigma(): float
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    {
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        return $this->sigma;
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    }
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    public function getSigmaForNeuron(Neuron $neuron): float
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    {
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        $sigma = 0.0;
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        foreach ($this->neuron->getSynapses() as $synapse) {
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            if ($synapse->getNode() == $neuron) {
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                $sigma += $synapse->getWeight() * $this->getSigma();
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            }
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        }
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        return $sigma;
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    }
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}