Create or convert filter models to second-order sections form.
Usage
Sos(sos, g = 1)
as.Sos(x, ...)
## S3 method for class 'Arma'
as.Sos(x, ...)
## S3 method for class 'Ma'
as.Sos(x, ...)
## S3 method for class 'Sos'
as.Sos(x, ...)
## S3 method for class 'Zpg'
as.Sos(x, ...)
Value
A list of class Sos with the following list elements:
sos
second-order section representation of the model, returned as an
L x 6 matrix, one row for each section 1:L. Each row
consists of an [B, A], pair, where B = c(b0, b1, b2), and
A = c(1, a1, a2), the filer coefficients for each section. Each
b0 entry must be nonzero for each section.
g
overall gain factor that scales any one of the \(B_i\) vectors.
Default: 1