facebook / facebook/prophet

Unusual changepoints plot

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Description

Hi,
usually changepoints plot look like this:
![image](https://user-images.githubusercontent.com/14220795/181439972-d2705e57-837e-4d49-a385-b55b1b5075f4.png)

I would like your opinion on a model with such changepoints (on the same series):
![image](https://user-images.githubusercontent.com/14220795/181438781-3004add3-5f99-4461-a195-59cc72afaeeb.png)

Parameters for this model:
changepoint_prior_scale = 0.46, changepoint_range = 0.94, fourier_order_weekly_seasonality = 10, fourier_order_yearly_seasonality = 9, seasonality_mode = 'multiplicative', growth = 'linear', weekly_seasonality_prior_scale = 6.119445545860264, yearly_seasonality_prior_scale = 7.131054290549793
(I used hyperopt for tuning.)

Is such a model ok, or is there something wrong?

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