retenmod 0.0.1

retention models to forecast churn

retenmod

This is a python port of the R package foretell. This projects customer retention rates, see “How to Project Customer Retention” Revisited: The Role of Duration Dependence (Fader et al., 2018) for the original formulation and description of the models.

To install, just use pip:

pip install retenmod

Only dependencies are scipy and numpy. For a simple example of use for the BdW model:

import retenmod
surv = [100, 86.9, 74.3, 65.3, 59.3]
res = retenmod.bdw(surv,6)
print(res.params)
print(res.proj)