如何将python熊猫scatter_matrix保存为图形？

Question

我有一个数据帧形成一个scatter_matrix，但我似乎无法保存图像。我如何保存它？

import pandas as pd 
my_scatter = pd.scatter_matrix(my_dataframe, diagonal="kde") 

如何保存my_scatter？

Answer 1

你在使用IPython吗？如果你在IPython笔记本中，你有没有试过savefig('/path/to/filename.png')？

Answer 2

假设你正在使用matplotlib：

import pandas as pd 
import numpy as np # Only necessary for this example if you don't use it no poblem 
import matplotlib.pyplot as plt 

# Random data 
my_dataframe = pd.DataFrame(np.random.randn(1000, 4), columns=['a', 'b', 'c', 'd']) 

# Your plotting funciton 
my_scatter = pd.scatter_matrix(my_dataframe, diagonal="kde") 

# Save the figure (this can also be a path). As it stands now it will save in this codes directory. 
plt.savefig(r"figure_1.png")