绘制OLS拟合值与残差散点图

import pandas as pd
import statsmodels.api as sm
import matplotlib
matplotlib.use(____)
import matplotlib.pyplot as plt

def solve():
    url = '____'
    df = pd.read_excel(____)
    X = sm.add_constant(____)
    y = df['____']
    model = sm.OLS(____).fit()
    plt.figure(figsize=(____, ____))
    plt.scatter(____)
    plt.axhline(____, color='____', linestyle='____')
    plt.xlabel(____)
    plt.ylabel(____)
    plt.title(____)
    plt.tight_layout()
    plt.show()
    print((abs(____) > ____).sum())