sarma_expand: Expand Parameters for an SARMA object
Description
Creates an expanded PHI and THETA vector for use in other objects.
Usage
sarma_expand(params, objdesc)
Value
A field<vec>
of size two as follows:
Arguments
- params
A vec
containing the theta values of the parameters.
- objdesc
A vec
containing the model term information.
Details
The objdesc
is assumed to have the structure of:
AR(p)
MA(q)
SAR(P)
SMA(Q)
Seasons