無法得到迴歸線和Seaborn方差界限pairplot

Question

我無法得到迴歸線和方差周圍界定，而截至http://seaborn.pydata.org/generated/seaborn.pairplot.html

import pandas pd 
import seaborn as sns 
import numpy as np 
import matplotlib as plt 
# Preparing random dataFrame with two colums, viz., random x and lag-1 values 
lst1 = list(np.random.rand(10000)) 
df = pd.DataFrame({'x1':lst1}) 
df['x2'] = df['x1'].shift(1) 
df = df[df['x2'] > 0] 
# Plotting now 
pplot = sns.pairplot(df, kind="reg") 
pplot.set(ylim=(min(df['x1']), max(df['x1']))) 
pplot.set(xlim=(min(df['x1']), max(df['x1']))) 
plt.show() 

Answer 1

迴歸線所示的例子繪製seaborn.pairplot與kind=reg在那裏，你只是沒有看到它，因爲它隱藏在劇情中不自然的高點上。

因此，讓我們減少點的數量，你會看到迴歸預期。

import pandas as pd 
import seaborn as sns 
import numpy as np 
import matplotlib.pyplot as plt 
# Preparing random dataFrame with two colums, viz., random x and lag-1 values 
lst1 = list(np.random.rand(100)) 
df = pd.DataFrame({'x1':lst1}) 
df['x2'] = df['x1'].shift(1) 
df = df[df['x2'] > 0] 
# Plotting now 
pplot = sns.pairplot(df, kind="reg") 

plt.show()