assure the slopes to be lower and lower

[hukun1995]

sometimes we have the fact, that the slopes of piece_wise_linear_model is lower and lower，seems like the log function。
what should I do to get the satisfied fit without extra process for model

[cjekel]

The pwlfit library defaults to fitting monotonic datasets https://github.com/google/pwlfit . Maybe it makes sense to just try that for your project?

I don't have a good way to enforce monotonic fits.