`scipy.signal._ltisys:dlti.freqresp`

Signature

def freqresp(self, w = None, n = 10000, whole = False)

Calculate the frequency response of a discrete-time system.

w : array_like, optional: Array of frequencies (in radians/sample). Magnitude and phase data is calculated for every value in this array. If not given a reasonable set will be calculated.
n : int, optional: Number of frequency points to compute if w is not given. The n frequencies are logarithmically spaced in an interval chosen to include the influence of the poles and zeros of the system.
whole : bool, optional: Normally, if w is not given, frequencies are computed from 0 to the Nyquist frequency, pi radians/sample (upper-half of unit-circle). If whole is True, compute frequencies from 0 to 2*pi radians/sample.