python 使用matplotlib.pyplot.hist和numpy权重的标准化直方图

Posted 2021-05-09

import numpy as np
import matplotlib.pyplot as plt
counts = [10, 8, 6, 14]
weights = np.ones_like(counts) / float(len(counts))
plt.figure(figsize=(10, 5))
plt.hist(counts, bins=range(1, max(counts)+2), align='left', weights=weights)
plt.xticks(range(1, max(counts)+1))
plt.show()