| ... | @@ -21,10 +21,7 @@ Sur ce git, le code est plus complet, et permet de tracer : |
... | @@ -21,10 +21,7 @@ Sur ce git, le code est plus complet, et permet de tracer : |
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## Premier contact avec _plt.matshow_, sur une matrice simple
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## Premier contact avec _plt.matshow_, sur une matrice simple
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Un premier contact avec la méthode plt.imshow ou plt.matshow, où on passe juste une matrice (ici, une liste de listes). C'est l'exemple mis en ligne dans le REPL.
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Un premier contact avec la méthode plt.imshow ou plt.matshow, où on passe juste une matrice (ici, une liste de listes). C'est l'exemple mis en ligne dans le REPL. | | 1) méthode `matshow `en spécifiant uniquement la matrice ; 2) à la deuxième étape on a ajouté une `colorbar `| 3) méthode `matshow`en spécifiant l'argument extent, ce qui revient à définir les coordonnées des 4 coins |
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| 1) méthode `matshow `en spécifiant uniquement la matrice ; 2) à la deuxième étape on a ajouté une `colorbar ` | 3) méthode `matshow`en spécifiant l'argument extent, ce qui revient à définir les coordonnées des 4 coins |
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```python
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```python
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from matplotlib import pyplot as plt
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from matplotlib import pyplot as plt
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| ... | @@ -86,7 +83,7 @@ fig.show() |
... | @@ -86,7 +83,7 @@ fig.show() |
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| 4) on peut définir une colormap par une liste de couleurs, et spécifier des limites de classe ; notez les classes pour "-200 et moins" ou "500 et plus" | 5) quand c'est préférable, on peut partir d'une échelle colorimétrique continue que l'on va découper en N classes. Il reste possible de la modifier couleur par couleur. |
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| 4) on peut définir une colormap par une liste de couleurs, et spécifier des limites de classe ; notez les classes pour "-200 et moins" ou "500 et plus" | 5) quand c'est préférable, on peut partir d'une échelle colorimétrique continue que l'on va découper en N classes. Il reste possible de la modifier couleur par couleur. |
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On peut personnaliser la barre de couleurs, en imposant les couleurs et les limites de classe, et en ajoutant un titre par exemple.
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On peut personnaliser la barre de couleurs, en imposant les couleurs et les limites de classe, et en ajoutant un titre par exemple.
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Dans un premier temps, on va passer une liste de couleurs définies par l'utilisateur, instance de la classe ListedColorMaps. Je choisis aussi les limites de classe avec bounds.
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Dans un premier temps, on va passer une liste de couleurs définies par l'utilisateur, instance de la classe ListedColorMaps. Je choisis aussi les limites de classe avec bounds.
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