eelbrain.powerlaw_noise

eelbrain.powerlaw_noise(dims, exponent, seed=None)

Gaussian (1/f)^{exponent} noise.

Parameters
  • dims (Union[NDVar, Dimension, Sequence[Dimension]]) – Shape of the noise.

  • exponent (float) –

    The power-spectrum of the generated noise is proportional to S(f) = (1 / f)^{exponent}

    • flicker/pink noise: exponent=1

    • brown noise: exponent=2

  • seed (Union[int, RandomState, None]) – Seed for random number generator.

Notes

Based on colorednoise.