如何将传奇与大 pandas 放到情节之外 [英] How to put legend outside the plot with pandas

问题描述

如何将图例放置在情节之外?

How is it possible to put legend outside the plot?

import pandas as pd
import matplotlib.pyplot as plt
a = {'Test1': {1: 21867186, 4: 20145576, 10: 18018537},
    'Test2': {1: 23256313, 4: 21668216, 10: 19795367}}

d = pd.DataFrame(a).T
#print d

f = plt.figure()

plt.title('Title here!', color='black')
plt.legend(loc='center left', bbox_to_anchor=(1, 0.5))
d.plot(kind='bar', ax=f.gca())
plt.show()

推荐答案

我认为您需要在添加调用legend之前先调用plot.

I think you need to call plot before you add the calling legend.

import pandas as pd
import matplotlib.pyplot as plt
a = {'Test1': {1: 21867186, 4: 20145576, 10: 18018537},
    'Test2': {1: 23256313, 4: 21668216, 10: 19795367}}

d = pd.DataFrame(a).T
#print d

f = plt.figure()

plt.title('Title here!', color='black')
d.plot(kind='bar', ax=f.gca())
plt.legend(loc='center left', bbox_to_anchor=(1.0, 0.5))
plt.show()

-----熊猫解决方案 如果您使用的是熊猫Dataframe.plot

----- Panda solution If you are using pandas Dataframe.plot

dataframe_var.plot.bar().legend(loc='center left',bbox_to_anchor=(1.0, 0.5));

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