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Generate a Pole-zero plot from filter coefficients.
polezero (b, a, ...)
The filter moving-average (MA) coefficients.
The filter autoregressive (AR) coefficients.
Additional parameters are passed to the internal call of plot().
Santiago Barreda <sbarreda@ucdavis.edu>
This function plots filter poles (x) and zeros (o) based on the given coefficients.
http://en.wikipedia.org/wiki/Pole
## example of a typical single-zero preemphasis filter #a = 1 #b = c(1, -.94) #polezero (b, a) #example of a complex-pole formant-style filter #a = c(1, -.3, .2) #b = c(1) #polezero (b, a)
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