qq_41983709的博客

今天也是第一次编写python，最近学习了感知机，上了机器学习基石关于这个地方的课程，收获很多今天一天，太浪费时间了，为了配置sublime text3，和numpy库，弄了一下午，困难前行吧！然后照着别人的程序，写了一下梯度下降法o，对了，python的空格对齐问题真的是很烦；import numpy as npimport matplotlib.pyplot as plt...

import numpy as npimport pandas as pdimport matplotlib.pyplot as pltimport math as _math#datasetsfile_name=("D:\\python_text\\sample.csv")data_x = pd.read_csv(file_name,usecols=[0,1,2]) #只读...

理论部分，已经记录在笔记上，就不打字了。。。import pandas as pdimport numpy as npimport matplotlib.pyplot as pltfrom itertools import islicefrom sklearn import linear_model#-----------------------------------#def...

#coding:utf-8from numpy import *import pandas as pdtheta=mat([0,0,0]) #初始theta值alpha=0.001 #step#datasetsfile_name=("D:\\python_text\\logist.csv")#加载数据集def loadDataSet(file_name):...