听起来你不想要normed
/density
在这种情况下夸格。您已经在使用weights
。如果将权重乘以 100 并忽略normed=True
选项,您应该得到您想要的结果。
例如:
import matplotlib.pyplot as plt
import numpy as np
np.random.seed(1)
x = np.random.normal(5, 2, 10000)
y = np.random.normal(2, 1, 3000000)
xweights = 100 * np.ones_like(x) / x.size
yweights = 100 * np.ones_like(y) / y.size
fig, ax = plt.subplots()
ax.hist(x, weights=xweights, color='lightblue', alpha=0.5)
ax.hist(y, weights=yweights, color='salmon', alpha=0.5)
ax.set(title='Histogram Comparison', ylabel='% of Dataset in Bin')
ax.margins(0.05)
ax.set_ylim(bottom=0)
plt.show()
另一方面,你目前正在做的事情(weights
and normed
) 将导致(注意 y 轴上的单位):
import matplotlib.pyplot as plt
import numpy as np
np.random.seed(1)
x = np.random.normal(5, 2, 10000)
y = np.random.normal(2, 1, 3000000)
xweights = 100 * np.ones_like(x) / x.size
yweights = 100 * np.ones_like(y) / y.size
fig, ax = plt.subplots()
ax.hist(x, weights=xweights, color='lightblue', alpha=0.5, normed=True)
ax.hist(y, weights=yweights, color='salmon', alpha=0.5, normed=True)
ax.set(title='Histogram Comparison', ylabel='% of Dataset in Bin')
ax.margins(0.05)
ax.set_ylim(bottom=0)
plt.show()