check | R Documentation |
Check for causality and invertibility
check(a)
a |
ARMA model |
The ARMA model is a list with the following components.
phi | Vector of AR coefficients (index number equals coefficient subscript) |
theta | Vector of MA coefficients (index number equals coefficient subscript) |
sigma2 | White noise variance |
None
a = specify(ar=c(0,0,.99)) check(a)
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