Plot the poles and zeros of a model or filter.
# S3 method for default zplane(filt, a, ...)# S3 method for Arma zplane(filt, ...)# S3 method for Ma zplane(filt, ...)# S3 method for Zpg zplane(filt, ...)
# S3 method for Arma zplane(filt, ...)
# S3 method for Ma zplane(filt, ...)
# S3 method for Zpg zplane(filt, ...)
No value is returned.
for the default case, the moving-average coefficients of an ARMA model or filter. Generically, filt specifies an arbitrary model or filter operation.
filt
the autoregressive (recursive) coefficients of an ARMA filter.
Additional arguments passed to plot.
plot
Tom Short
Poles are marked with an ‘x’, and zeros are marked with an ‘o’.
Octave Forge https://octave.sourceforge.io/
https://en.wikipedia.org/wiki/Pole-zero_plot
Arma, freqz
Arma
freqz
filt <- ellip(5, 0.5, 20, .2) zplane(filt)
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