03 2022 档案
摘要:import pandas as pdimport numpy as npimport matplotlib.pyplot as pltdef sigmoid(x): # 定义网络激活函数 return 1/(1+np.exp(-x))data_tr = pd.read_csv('3.3 data_
阅读全文
摘要:import pandas as pdimport numpy as npimport matplotlib.pyplot as pltdef sigmoid(x): # 定义网络激活函数 return 1/(1+np.exp(-x))data_tr = pd.read_csv('3.3 data_
阅读全文