摘要：
# -*- coding: utf-8 -*- #导入数据 import pandas as pd data = pd.read_csv(r'E:\Python\machine learning\own\decision_tree\test.csv') X = data.ix[:,0:4].valu 阅读全文
摘要：
# -*- coding: utf-8 -*- #计算各个属性各个值的嫡 import numpy as np def H(tdata): n = tdata.shape[1] -1 C = tdata.ix[:,n] result = 0 counts = list(C.value_counts()) for i in range(len(counts)... 阅读全文