我怎么能在同一张图上画出4个直方图

2024-03-28 11:56:41 发布

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我有以下问题:
我正在matplotlib.pyplot中使用hist()
我试图在同一个图上创建4个直方图。它们中每一个的近似高斯分布。
我如何在同一张图上绘制4个直方图,而不让它们相互阻塞(并排)?有什么想法吗?


Tags: matplotlib绘制直方图histpyplot
1条回答
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1楼 · 发布于 2024-03-28 11:56:41

matplotlib documentation中有几个例子。这个好像回答了你的问题:

import numpy as np
import pylab as P
#
# first create a single histogram
#
mu, sigma = 200, 25
x = mu + sigma*P.randn(10000)
#
# finally: make a multiple-histogram of data-sets with different length
#
x0 = mu + sigma*P.randn(10000)
x1 = mu + sigma*P.randn(7000)
x2 = mu + sigma*P.randn(3000)

# and exercise the weights option by arbitrarily giving the first half
# of each series only half the weight of the others:

w0 = np.ones_like(x0)
w0[:len(x0)/2] = 0.5
w1 = np.ones_like(x1)
w1[:len(x1)/2] = 0.5
w2 = np.ones_like(x2)
w0[:len(x2)/2] = 0.5



P.figure()

n, bins, patches = P.hist( [x0,x1,x2], 10, weights=[w0, w1, w2], histtype='bar')

P.show()

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