如何仅对 pandas 数据框的最后一行设置样式? [英] How do I style only the last row of a pandas dataframe?

问题描述

我可以设置熊猫数据框的样式:

I can style a pandas dataframe:

import pandas as pd
import numpy as np
import seaborn as sns
cm = sns.diverging_palette(-5, 5, as_cmap=True)

df = pd.DataFrame(np.random.randn(3, 4))
df.style.background_gradient(cmap=cm)

但是我不知道如何只将样式应用于最后一行. background_gradient调用中有一个subset选项，它建议我使用

but I can't figure out how to only apply a style to the last row. There is a subset option in the background_gradient call, and it suggests that I use an index slice but I cannot figure out how to make just the last row have any kind of styling.

这是我最接近成功的地方:

Here is my closest to success:

df.style.background_gradient(cmap=cm, subset=[2], axis='index')

推荐答案

使用index的最后一个元素作为子集.

Use the last element of your index as your subset.

df.style.background_gradient(cmap=cm, subset=df.index[-1])

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