在 pandas 情节图例中显示非ASCII(日语)字符 [英] Display non ascii (Japanese) characters in pandas plot legend

问题描述

如果我这样做:

import pandas as pd
pd.DataFrame( data=nr.random( (2,2) ), columns=[u'é',u'日本'] ).plot()

结果:

因此显示é，但不显示日本.稍作搜索后，我发现了这个页面，它似乎为matplotlib.我在此处下载了字体文件，并使其与:

So é shows up, but not 日本. After googling a bit, I found this page which seems to provide a solution for matplotlib. I downloaded the font file here and got it to work with matplotlib:

import matplotlib.font_manager as fm
prop = fm.FontProperties(fname='/Users/user/Downloads/IPAfont00303/ipag.ttf')
plt.plot( np.arange(10), np.arange(10), label=u'日本' )
plt.legend( prop=prop )

结果:

然后我尝试将相同的解决方案应用于pandas:

Then I tried to apply the same solution to pandas:

import matplotlib.font_manager as fm
prop = fm.FontProperties(fname='/Users/user/Downloads/IPAfont00303/ipag.ttf')
df0.plot( prop=prop )

结果:

TypeError: There is no line property "prop"

我理解错误消息，但是我不知道如何让熊猫使用prop=prop.欢迎任何帮助.

I understand the error message, but I don't know how I can get pandas to use prop=prop. Any help is welcome.

推荐答案

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import matplotlib.font_manager as font_manager

df = pd.DataFrame( data=np.random.random( (2,2) ), columns=[u'é',u'日本'] )
ax = df.plot()
legend = ax.legend()
font = font_manager.FontProperties(fname='/Users/user/Downloads/IPAfont00303/ipag.ttf')

for text in legend.texts:
    text.set_font_properties(font)

plt.show()

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