kz852456的博客

2.1资本资产定价模型与证券市场线 # 计算β from scipy import stats stock_returns=[0.065,0.0265,-0.0593,-0.001,0.0346] mkt_returns=[0.055,-0.09,-0.041,0.045,0.022] beta,alpha,r_valuee,p_value,std_err=stats.linregress(sto...

3.4增量法 import numpy as np def incremental_search(f,a,b,dx): #f函数，a左边界，b右边界，dx步长 fa=f(a) c=a+dx fc=f(c) n=1 while np.sign(fa) == np.sign(fc): if a >= b: r...