如何在Pandas barplot中旋转x轴刻度标签 [英] How to rotate x-axis tick labels in Pandas barplot

问题描述

使用以下代码:

import matplotlib
matplotlib.style.use('ggplot')
import matplotlib.pyplot as plt
import pandas as pd

df = pd.DataFrame({ 'celltype':["foo","bar","qux","woz"], 's1':[5,9,1,7], 's2':[12,90,13,87]})
df = df[["celltype","s1","s2"]]
df.set_index(["celltype"],inplace=True)
df.plot(kind='bar',alpha=0.75)
plt.xlabel("")

我做了这个情节:

如何将x轴刻度标签旋转到0度?

How can I rotate the x-axis tick labels to 0 degrees?

我尝试添加它，但是没有用:

I tried adding this but did not work:

plt.set_xticklabels(df.index,rotation=90)

推荐答案

传递参数

Pass param rot=0 to rotate the xticks:

import matplotlib
matplotlib.style.use('ggplot')
import matplotlib.pyplot as plt
import pandas as pd

df = pd.DataFrame({ 'celltype':["foo","bar","qux","woz"], 's1':[5,9,1,7], 's2':[12,90,13,87]})
df = df[["celltype","s1","s2"]]
df.set_index(["celltype"],inplace=True)
df.plot(kind='bar',alpha=0.75, rot=0)
plt.xlabel("")
plt.show()

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