Bonjour, j'ai un fichier texte dans lequel on récupère les données  d'un sonar. Et j'aimerai tracer la courbe en fonction avec matplotlib mais l'affichage n'est pas bon. Mon programme a du mal à trier par ordre croissant les données x et y.

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Edité par KadiatouSako 16 août 2022 à 18:47:46

Je viens de trouver ton message. Pourquoi ne pas poster dans la catégorie Python?
Fais un copier-coller de ton code avec la balise </> code pour qu'on puisse faire des tests.

Petite illustration:

>>> X = [7, 3]                                                                                                          
>>> Y = [5, 7]                                                                                                          
>>> XY = list(sorted(zip(X, Y)))                                                                                        
>>> XY                                                                                                                  
[(3, 7), (7, 5)]                                                                                                        
>>> X = [x for x, y in XY]                                                                                              
>>> Y = [y for x, y in XY]                                                                                              
>>> X                                                                                                                   
[3, 7]                                                                                                                  
>>> Y                                                                                                                   
[7, 5]                                                                                                                  
>>>                                                                                                                     

Ou sous une forme plus condensée:
>>> X = [7, 3, 9]                                                                                                       
>>> Y = [2, 5, 8]                                                                                                       
>>> X;Y                                                                                                                 
[7, 3, 9]                                                                                                               
[2, 5, 8]                                                                                                               
>>> X, Y = zip(*sorted(zip(X, Y)))                                                                                      
>>> X = list(X);X                                                                                                       
[3, 7, 9]                                                                                                               
>>> Y = list(Y);Y                                                                                                       
[5, 2, 8]                                                                                                               

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Edité par PierrotLeFou 21 septembre 2022 à 3:12:04