如何在图例上显示数据 label

Question

i am trying to plot bar plot but there is problem labels are not showing on legend, any one help how can i show legend there in my figure data label are showing like 1,2 instead of label

import pandas as pd
import matplotlib.pyplot as plt

a = [3,4, 15, 10, 12]
b = [2,13,4,19,1]
c = [12,3,7,8,4]
d = [12, 13,4,7,14]
df = pd.DataFrame([a,b,c,d], columns=["A", "B", "C", "D", "E"]).transpose()

df.plot(kind = "bar")
plt.legend(["A", "B", "C", "D", "E"])
plt.legend(ncol=4, loc='center', bbox_to_anchor=(0.5, 1.06))

plt.xticks(rotation=360)
plt.show()

Answer 1

我认为您需要一次传递plt.legend()中的所有参数。 试试这样：

plt.legend(labels=["A", "B", "C", "D", "E"], ncol=4, loc='center', bbox_to_anchor=(0.5, 1.06))

而不是单独提供标签和其他参数。

正如@BigBen 在评论中指出的那样，如果您不使用transpose() ，您的代码很容易给出预期的结果