zplane {signal} | R Documentation |
Plot the poles and zeros of a model or filter.
## Default S3 method: zplane(filt, a, ...) ## S3 method for class 'Arma': zplane(filt, ...) ## S3 method for class 'Ma': zplane(filt, ...) ## S3 method for class 'Zpg': zplane(filt, ...)
filt |
for the default case, the moving-average coefficients of
an ARMA model or filter. Generically, filt
specifies an arbitrary model or filter operation. |
a |
the autoregressive (recursive) coefficients of an ARMA filter. |
... |
Additional arguments passed to plot . |
Poles are marked with an `x', and zeros are marked with an `o'.
No value is returned.
Tom Short
Octave Forge http://octave.sf.net
http://en.wikipedia.org/wiki/Pole-zero_plot
filt <- ellip(5, 0.5, 20, .2) zplane(filt)