Prediction intervals for ARIMA and structural time series models using importance sampling approach with uninformative priors for model parameters, leading to more accurate coverage probabilities in frequentist sense. Instead of sampling the future observations and hidden states of the state space representation of the model, only model parameters are sampled, and the method is based solving the equations corresponding to the conditional coverage probability of the prediction intervals. This makes method relatively fast compared to for example MCMC methods, and standard errors of prediction limits can also be computed straightforwardly.
Package details 


Author  Jouni Helske 
Maintainer  Jouni Helske <jouni.helske@iki.fi> 
License  GPL3 
Version  1.0.3 
Package repository  View on CRAN 
Installation 
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