Pandas doens't show scatter matrix-CodePudding

I don't see scatter matrix

I used this code in VSCode:

import numpy as np
import pandas as pd
df = pd.DataFrame(np.random.randn(1000, 4), columns=\['A','B','C','D'\])
pd.plotting.scatter_matrix(df, alpha=0.2)

but nothing happens, it doesn't show scatter matrix. There is no error message in command line.

CodePudding user response：

you want scatter matrix in question title but you use plot in code. Will you try this?

import numpy as np
import pandas as pd
from pandas.plotting import scatter_matrix

df = pd.DataFrame(np.random.randn(1000, 4), columns=['A','B','C','D'])
scatter_matrix(df, alpha=0.2)

if you still don't see scatter matrix,
according to @medium-dimensional's suggestion you have to import pyplot:

import numpy as np
import pandas as pd
from pandas.plotting import scatter_matrix
import matplotlib.pyplot as plt
df = pd.DataFrame(np.random.randn(1000, 4), columns=['A','B','C','D'])
scatter_matrix(df, alpha=0.2)
plt.show()