如何为绘图上的分布范围填充另一种颜色

Question

我有一个使用 a）Seaborn 和 b）Matplotlib 获得的均匀分布的直方图，我希望曲线下或直方图上的特定区域用不同的颜色突出显示。import matplotlib.pyplot as pltimport numpy as npimport seaborn as snssns.set()x = np.random.uniform(45,60, 1000)#With Seabornsns.distplot(x)plt.fill_between(50,55, color='g')#With Matplotlibplt.hist(x)plt.fill_between(50,55)但是，我收到一条错误消息，说我有太多的数组索引。如何在同一图上用另一种颜色填充给定范围的曲线或直方图？

Answer 1

https://matplotlib.org/3.1.1/api/_as_gen/matplotlib.pyplot.fill_between.html的注释

import matplotlib.pyplot as plt

import numpy as np

import seaborn as sns

sns.set()

x = np.random.uniform(45,60, 1000)

#With Seaborn

sns.distplot(x)

# fill square defined by x, y0, y1

# need to get pdf and bins generated by sns to do fill between here

## With numpy is easier for me

# density function

y, ybin = np.histogram(x, bins=np.arange(45,61), density=True)

x_points = np.arange(50,56)

x_point_inds = np.arange(5,11)

y0 = np.zeros(6)

y1 = y[x_point_inds]

#With Matplotlib

plt.hist(x,bins=ybin,density=True, zorder=1)

plt.fill_between(x_points, y0, y1, color='g', alpha=0.5, zorder=5)