MATH_ADD_CODE

机器学习之-线性回归sklean库的api# -*- coding:utf-8 -*-# @author Marcoprint (__doc__)import matplotlib.pyplot as pltimport numpy as npfrom sklearn import datasets,linear_model,cross_validationdef lo...

线性回归-Rige回归# -*- coding:utf-8 -*-"""回归模型1.2 Ridge regressionauthor :marco"""print (__doc__)import matplotlib.pyplot as pltimport numpy as npfrom sklearn import datasets,linear_model,cross...

线性回归-Lasso回归# -*- coding: utf-8 -*-"""auhtor:Marcoalgorithm name :Lasso Regression"""print (__doc__)import numpy as npfrom sklearn import cross_validation,linear_model,datasetsdef load_dat...

来源于机器学习import numpy as npclass Perceptron(object): """Perceptron classifier. Parameters ------------ eta : float Learning rate (between 0.0 and 1.0) n_iter : int Passe...

序列向后特征选择from itertools import combinationsimport numpy as npfrom sklearn.metrics import accuracy_scorefrom sklearn.model_selection import train_test_splitclass SBS(): def __init__(self, e...