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by devit 1811 days ago
This is a Bayesian model so it of course provides a probability distribution for both the parameters and the forecasted values.

P(model | historic_data) = P(historic_data | model) P(model) / (sum(model) P(historic_data | model) P(model))

P(future_data | historic_data) = sum(model) P(future_data | model) P(model | historic_data) = (sum(model) P(future_data | model) P(historic_data | model) P(model)) / (sum(model) P(historic_data | model) P(model))