Passed
Push — master ( e83f7b...d953ef )
by Arkadiusz
03:28
created

Sigmoid   A

Complexity

Total Complexity 3

Size/Duplication

Total Lines 29
Duplicated Lines 100 %

Coupling/Cohesion

Components 1
Dependencies 0

Importance

Changes 0
Metric Value
wmc 3
lcom 1
cbo 0
dl 29
loc 29
rs 10
c 0
b 0
f 0

3 Methods

Rating   Name   Duplication   Size   Complexity  
A __construct() 4 4 1
A compute() 4 4 1
A differentiate() 4 4 1

How to fix   Duplicated Code   

Duplicated Code

Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.

Common duplication problems, and corresponding solutions are:

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<?php
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declare(strict_types=1);
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namespace Phpml\NeuralNetwork\ActivationFunction;
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use Phpml\NeuralNetwork\ActivationFunction;
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9 View Code Duplication
class Sigmoid implements ActivationFunction
0 ignored issues
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Duplication introduced by Arkadiusz Kondas
This class seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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{
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    /**
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     * @var float
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     */
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    private $beta;
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    public function __construct(float $beta = 1.0)
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    {
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        $this->beta = $beta;
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    }
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    /**
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     * @param float|int $value
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     */
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    public function compute($value): float
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    {
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        return 1 / (1 + exp(-$this->beta * $value));
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    }
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    /**
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     * @param float|int $value
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     * @param float|int $computedvalue
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     */
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    public function differentiate($value, $computedvalue): float
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    {
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        return $computedvalue * (1 - $computedvalue);
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    }
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}
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