一些学习网站和自己写的两个计算周的函数

toad：https://blog.csdn.net/zzpl139/article/details/127553557
风控指标：https://blog.csdn.net/eroswang/article/details/117735703
vintage：https://zhuanlan.zhihu.com/p/163206686
风控模型：https://falbang.com/?p=350
天池：https://tianchi.aliyun.com/competition/entrance/531830/forum
数据分析：https://www.zhihu.com/column/c_1289687794408452096
vintage：https://zhuanlan.zhihu.com/p/81027037

https://blog.csdn.net/weixin_39569389/article/details/112568063
https://zhuanlan.zhihu.com/p/38723333
https://blog.csdn.net/ruthywei/article/details/83302123
https://tianchi.aliyun.com/competition/entrance/531830/forum
https://scikit-learn.org/stable/modules/classes.html
https://blog.csdn.net/qq_39777550/article/details/109277937
https://zhuanlan.zhihu.com/p/110340679
https://zhuanlan.zhihu.com/p/110340679

where 1=1
${if(len(平台)=0,"","and 平台 in ('" + 平台 + "')")}
${if(len(灰度)=0,"","and 灰度 in ('" + 灰度 + "')")}

A','B','C
1','0

concat(str_to_date(concat(yearweek(时间), ' Sunday'), '%X%V %W'),"~",date_add(str_to_date(concat(yearweek(时间), ' Sunday'), '%X%V %W'),interval 6 day)) AS APPLY_WEEK
concat(str_to_date(concat(yearweek(时间,1),'Monday'),'%x%v %W'),"~",date_add(str_to_date(concat(yearweek(时间,1),'Monday'),'%x%v %W'),interval 6 day)) AS APPLY_WEEK

import datetime as dt
def get_monday_to_sunday(today):
today = dt.datetime.strptime(str(today), "%Y-%m-%d")
monday = dt.datetime.strftime(today - dt.timedelta(today.weekday()), "%Y-%m-%d")
monday_ = dt.datetime.strptime(monday, "%Y-%m-%d")
sunday = dt.datetime.strftime(monday_ + dt.timedelta(monday_.weekday() + 6), "%Y-%m-%d")
monday1=str(monday)
sunday1=str(sunday)
return monday1+"~"+sunday1
data['周']=data['时间'].apply(get_monday_to_sunday)
data

一些指标：https://www.cnblogs.com/qypx/p/15951637.html
计算lift ：https://zhuanlan.zhihu.com/p/91223667
逻辑回归：https://zhuanlan.zhihu.com/p/74874291
psi：https://zhuanlan.zhihu.com/p/79682292
损失函数：https://zhuanlan.zhihu.com/p/103459570
面试：https://zhuanlan.zhihu.com/p/352860054
函数基础：https://www.runoob.com/python/python-numbers.html