matplotlib笔记3 柱状图

import matplotlib.pyplot as plt import numpy as np n = 12 X = np.arange(n) Y1 = (1 - X / float(n)) * np.random.uniform(0.5, 1.0, n) Y2 = (1 - X / float(n)) * np.random.uniform(0.5, 1.0, n) plt.bar(X

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