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by Konstantinos
01:33
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green_magic.som.factory.SomFactory.create_som()   A

↳ Parent: green_magic.som.factory

Complexity

Conditions 2

Size

Total Lines 9
Code Lines 9

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
eloc 9
dl 0
loc 9
rs 9.95
c 0
b 0
f 0
cc 2
nop 5
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import attr
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from green_magic.utils import Subject
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from .self_organising_map import SomTrainer, SelfOrganizingMap
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@attr.s

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class SelfOrganizingMapFactory:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    trainer = attr.ib(init=True, default=SomTrainer())

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    subject = attr.ib(init=True, default=Subject([]))

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    def create(self, dataset, nb_cols, nb_rows, **kwargs):

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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        try:

            


            
                                                        
            
                                    
            
            

                
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            map_obj = self.trainer.infer_map(nb_cols, nb_rows, dataset, **kwargs)  # backend dependent (eg somoclu kind of object)

            


            
                                                        
            
                                    
            
            

                
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            self.subject.state = map_obj

            


            
                                                        
            
                                    
            
            

                
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            self.subject.notify()

            


            
                                                        
            
                                    
            
            

                
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            return SelfOrganizingMap(map_obj, dataset.name)

            


            
                                                        
            
                                    
            
            

                
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        except NoFeatureVectorsError as e:

            


            
                                                        
            
                                    
            
            

                
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            logger.info(f"{e}. Fire up an 'encode' command.")

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
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The variable logger does not seem to be defined.
                                                                                                

                    
                                                    

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            raise e

            


            
                                                        
            
                                    
            
            

                
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class NoFeatureVectorsError(Exception): pass

            


            
                                                        
            
                                    
            
            

                
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