red_noise#

syncopy.synthdata.red_noise(alpha, nSamples=1000, nChannels=2, seed=None, nTrials=100)[source]#

Uncoupled multi-channel AR(1) process realizations. For alpha close to 1 can be used as a surrogate 1/f background.

Parameters:

  • alpha (float) – Must lie within the [0, 1) interval

  • nSamples (int) – Number of samples per trial

  • nChannels (int) – Number of channels

  • seed (int or None) – Set to a number to get reproducible random numbers

  • nTrials (int or None) – Number of trials for the returned AnalogData object. When set to None a single-trial ndarray is returned.

Returns:

signal

Return type:

syncopy.AnalogData or numpy.ndarray