机器学习之sklearn工具包（逻辑回归）

逻辑回归的一般过程

实现逻辑回归的二分类与多分类

import numpy as np
from sklearn import datasets
from sklearn.linear_model import LogisticRegression
from sklearn.model_selection import train_test_split
X,y=datasets.load_iris(True)
cound=y!=2
X=X[cound]
y=y[cound]
result=train_test_split