customer_segmentation

RFM(F) Theory

1. Recency 最近一次点击
2. Frequency 最近12个月的点击 (Urbonas 2018,加上时间限定)
3. Monetary 最近12个月的价值 (Urbonas 2018,加上时间限定)
4. Tenure (Urbonas 2018, chap. 4)
   1. time since the first transaction
   2. Defines how long the customer has been with the company

todo 需要和其他的 RFM 合并，博客中的

Urbonas, Karolis. 2018. “Customer Segmentation in Python.” 2018. <https://www.datacamp.com/courses/customer-segmentation-in-python>.