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RandomSplit::splitDataset()   A
last analyzed

↳ Parent: RandomSplit

Complexity

Conditions 3
Paths 3

Size

Total Lines 13
Code Lines 9

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
eloc 9
dl 0
loc 13
rs 9.9666
c 0
b 0
f 0
cc 3
nc 3
nop 2
1 
<?php
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declare(strict_types=1);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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namespace Phpml\CrossValidation;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Phpml\Dataset\Dataset;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class RandomSplit extends Split

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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{

            


            
                                                                        
                            
            
                                    
            
            

                
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    protected function splitDataset(Dataset $dataset, float $testSize): void

            


            
                                                                        
                            
            
                                    
            
            

                
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    {

            


            
                                                                        
                            
            
                                    
            
            

                
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        $samples = $dataset->getSamples();

            


            
                                                                        
                            
            
                                    
            
            

                
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        $labels = $dataset->getTargets();

            


            
                                                                        
                            
            
                                    
            
            

                
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        $datasetSize = count($samples);

            


            
                                                                        
                            
            
                                    
            
            

                
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        $testCount = count($this->testSamples);

            


            
                                                                        
                            
            
                                    
            
            

                
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        for ($i = $datasetSize; $i > 0; --$i) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            $key = mt_rand(0, $datasetSize - 1);

            


            
                                                                        
                            
            
                                    
            
            

                
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            $setName = (count($this->testSamples) - $testCount) / $datasetSize >= $testSize ? 'train' : 'test';

            


            
                                                                        
                            
            
                                    
            
            

                
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            $this->{$setName.'Samples'}[] = $samples[$key];

            


            
                                                                        
                            
            
                                    
            
            

                
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            $this->{$setName.'Labels'}[] = $labels[$key];

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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