J'ai un nuage de points en python sur lequel je veux tracer une ligne de tendance. Des différents exemples que j'ai trouvé autour de l'Internet pour apprendre comment dessiner la ligne de tendance mon code est le suivant:Diagramme de dispersion en Python et matplotlib
import matplotlib.pyplot as plt
import numpy as np
x=np.array([9.80,13.20,13.46,14.09,13.96,10.77,8.79,8.61,8.83,11.08,10.13,12.40,9.90,10.96,12.75,11.79,11.79,12.38,12.78,13.08,12.83,12.57,12.96,12.90,12.91,13.67,12.83,12.50,12.42,12.83,12.82,12.70,12.60,12.90,13.20])
y=np.array([0.0706,0.0969,0.0997,0.1031,0.0848,0.1044,0.0815,0.1030,0.0783,0.0970,0.1193,0.0796,0.0697,0.0738,0.0895,0.0912,0.0887,0.0973,0.0942,0.1052,0.0984,0.0965,0.0903,0.0876,0.1071,0.0872,0.0857,0.0967,0.0926,0.0837,0.0967,0.0935,0.0946,0.0930,0.0758
])
plt.scatter(x, y)
fit = np.polyfit(x, y, deg=4)
p = np.poly1d(fit)
plt.plot(x,p(x),"r--")
plt.show()
Mais la ligne de résultat au lieu d'être une ligne courbe est juste un mélange de lignes. Quelqu'un peut-il s'il vous plaît expliquer mon erreur?
vraiment merci beaucoup! Je vois que j'ai un long chemin à parcourir pour apprendre ... – pma