zp2tf function

Zero-pole-gain to transfer function

Convert digital filter zero-pole-gain data to transfer function form

zp2tf(z, p, g = 1)

Arguments

• z: complex vector of the zeros of the model
• p: complex vector of the poles of the model
• g: overall gain. Default: 1.

Returns

A list of class "Arma" with the following list elements:

• b: moving average (MA) polynomial coefficients
• a: autoregressive (AR) polynomial coefficients

Examples

g <- 1
z <- c(0, 0)
p <- pracma::roots(c(1, 0.01, 1))
ba <- zp2tf(z, p, g)

See Also

as.Arma, filter

Author(s)

Geert van Boxtel, gjmvanboxtel@gmail.com