xxqcheers xxqcheers
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| # coding=utf-8 | |
| # auc值的大小可以理解为: 随机抽一个正样本和一个负样本，正样本预测值比负样本大的概率 | |
| # 根据这个定义，我们可以自己实现计算auc | |
| import random | |
| import time | |
| def timeit(func): | |
| """ | |
| 装饰器，计算函数执行时间 |