isStable | R Documentation |
Checks if a MixAR model is stable. This is also the second order stationarity condition.
isStable(x)
x |
the model |
If each component of a MixAR model corresponds to a stable autoregression model, then the MixAR model is also stable. However, the MixAR model may be stable also when some of its components correspond to integrated or explosive AR models, see the references.
True if the model is stable (second order stationary), FALSE otherwise.
Boshnakov2011on1st2ndmixAR
\insertRefWongLi2000mixAR
isStable(exampleModels$WL_I)
isStable(exampleModels$WL_II)
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