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MovingAverage::value()   A
last analyzed

↳ Parent: MovingAverage

Complexity

Conditions 4
Paths 8

Size

Total Lines 16
Code Lines 11

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 4
eloc 11
nc 8
nop 1
dl 0
loc 16
rs 9.2
c 0
b 0
f 0
1 
<?php
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namespace Phperf\Pipeline\Vector;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class MovingAverage implements VectorProcessor

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private $size;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private $values = [];

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function __construct($size)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $this->size = $size;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param $value

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @return int

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @todo optimize for fixed size array

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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     */

            


            
                                                        
            
                                    
            
            

                
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    public function value($value)

            


            
                                                        
            
                                    
            
            

                
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    {

            


            
                                                        
            
                                    
            
            

                
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        $result = $value;

            


            
                                                        
            
                                    
            
            

                
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        $cnt = 1;

            


            
                                                        
            
                                    
            
            

                
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        foreach ($this->values as $prev) {

            


            
                                                        
            
                                    
            
            

                
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            $result += $prev;

            


            
                                                        
            
                                    
            
            

                
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            ++$cnt;

            


            
                                                        
            
                                    
            
            

                
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        }

            


            
                                                        
            
                                    
            
            

                
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        if ($cnt > 1) {

            


            
                                                        
            
                                    
            
            

                
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            $result /= $cnt;

            


            
                                                        
            
                                    
            
            

                
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        }

            


            
                                                        
            
                                    
            
            

                
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        if (count($this->values) >= $this->size) {

            


            
                                                        
            
                                    
            
            

                
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            array_shift($this->values);

            


            
                                                        
            
                                    
            
            

                
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        }

            


            
                                                        
            
                                    
            
            

                
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        $this->values[] = $value;

            


            
                                                        
            
                                    
            
            

                
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        return $result;

            


            
                                                        
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}