sigex.add | R Documentation |
# Background: A sigex model consists of process x = sum y, for stochastic components y. Each component process y_t is either stationary or is reduced to stationarity by application of a differencing polynomial delta(B), i.e. w_t = delta(B) y_t is stationary. We have a model for each w_t process, which is specified through the ranks (indices of non-zero Schur complements, cf. background for sigex.param2gcd) of the white noise covariance matrix; also there is the model type, which denotes the specification of the t.s. model for w_t; all the regressors, which are specified by individual time series rather than by latent component, and must have length T; pre-specified bounds for cyclical parameters, for each component, if applicable.
sigex.add(mdl, vrank, class, order, bounds, name, delta)
mdl |
The specified sigex model, a list object |
vrank |
Vector of integers between 1 and N, corresponding to indices of non-zero Schur complements in the GCD of the innovations' covariance matrix for the new latent component |
class |
Character string of t.s. model type for the new latent component |
order |
Vector of model order |
bounds |
Four numbers, gives bounds for rho and omega, the cycle parameters of the new latent component rho lies in (bounds[1],bounds[2]) omega lies in (bounds[3],bounds[4]) |
name |
Character string giving the latent component's name |
delta |
Differencing polynomial (corresponds to delta(B) in Background) written in format c(delta0,delta1,...,deltad) |
mdl: the updated sigex model, a list object
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