python - 如何在循环中保存多个图？

Question

我试图在一个循环中保存多个图，但它把它们画在了彼此之上。我该怎么办？

示例代码:

import pandas as pd
import seaborn as sns
data=pd.DataFrame({'a':[1,2,3,4,5,6],'b':[0,1,1,0,1,1],'c':[0,0,0,1,1,1]})
for i in ['b','c']:
    img=sns.boxplot(data.a, groupby=data[i])
    fig = img.get_figure()
    fig.savefig(i)

Answer 1

需要清除循环中滚动的上图数据。这应该有效，注意 fig.clf() 作为每个循环的结尾:

import pandas as pd
import seaborn as sns
data=pd.DataFrame({'a':[1,2,3,4,5,6],'b':[0,1,1,0,1,1],'c':[0,0,0,1,1,1]})
for i in ['b','c']:
    img=sns.boxplot(data.a, groupby=data[i])
    fig = img.get_figure()
    fig.savefig(i)
    fig.clf()