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votes
3answers
421 views

Random generation of ARMA(2,2) Gaussian time series

I get very poor replication of longitudinal parameters from my own program using the Box-Jenkins model. I had no such problem with my own program generating AR(1) Gaussian data. Is there some trick ...
1
vote
2answers
167 views

Gaussian ARMA process with non-gaussian innovations

Can a gaussian ARMA process have non-gaussian innovations? (i.e., is there an ARMA process that is gaussian, but the corresponding innovations are not gaussian)?