signal: Signal component of a TF model
Description
signal extracts the signal of a TF model.
Usage
signal(mdl, ...)# S3 method for tfm
signal(mdl, y = NULL, diff = TRUE, ...)
Arguments
mdl
an object of the class tfm.
y
output of the TF model if it is different to that of the
tfm object.
diff
logical. If TRUE, the noise is differenced with
the "i" operator of the univariate model of the noise.