Python 如何使用 Seaborn 在同一图上绘制多个直方图

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时间:2020-08-19 17:47:03  来源:igfitidea点击:

How To Plot Multiple Histograms On Same Plot With Seaborn

pythonmatplotlibseaborn

提问by Malonge

With matplotlib, I can make a histogram with two datasets on one plot (one next to the other, not overlay).

使用 matplotlib,我可以在一个图上使用两个数据集制作直方图(一个挨着另一个,而不是重叠)。

import matplotlib.pyplot as plt
import random

x = [random.randrange(100) for i in range(100)]
y = [random.randrange(100) for i in range(100)]
plt.hist([x, y])
plt.show()

This yields the following plot.

这产生了以下情节。

enter image description here

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However, when I try to do this with seabron;

但是,当我尝试使用 seabron 执行此操作时;

import seaborn as sns
sns.distplot([x, y])

I get the following error:

我收到以下错误:

ValueError: color kwarg must have one color per dataset

So then I try to add some color values:

那么我尝试添加一些颜色值:

sns.distplot([x, y], color=['r', 'b'])

And I get the same error. I saw this poston how to overlay graphs, but I would like these histograms to be side by side, not overlay.

我得到了同样的错误。我看到这篇关于如何叠加图形的帖子,但我希望这些直方图并排放置,而不是叠加。

And looking at the docsit doesn't specify how to include a list of lists as the first argument 'a'.

查看文档,它没有指定如何将列表列表包含为第一个参数“a”。

How can I achieve this style of histogram using seaborn?

如何使用 seaborn 实现这种直方图风格?

回答by Primer

If I understand you correctly you may want to try something this:

如果我理解正确,您可能想尝试以下操作:

fig, ax = plt.subplots()
for a in [x, y]:
    sns.distplot(a, bins=range(1, 110, 10), ax=ax, kde=False)
ax.set_xlim([0, 100])

Which should yield a plot like this:

这应该产生这样的情节:

enter image description here

在此处输入图片说明

UPDATE:

更新

Looks like you want 'seaborn look' rather than seaborn plotting functionality. For this you only need to:

看起来您想要“seaborn 外观”而不是 seaborn 绘图功能。为此,您只需要:

import seaborn as sns
plt.hist([x, y], color=['r','b'], alpha=0.5)

Which will produce:

这将产生:

enter image description here

在此处输入图片说明