Python 实现3种回归模型(Linear RegressionLassoRidge)的示例

公共的抽象基类 import numpy as np from abc import ABCMeta, abstractmethod class LinearModel(metaclass=ABCMeta): """ Abstract base class of Linear Model. """ def __init__(self): # Before fit or predict, please transform samples' mean to 0, var to 1. self.scaler = StandardScaler() @abstractmethod