neurodsp.aperiodic.irasa.fit_irasa

neurodsp.aperiodic.irasa.fit_irasa(freqs, psd_aperiodic)[source]

Fit the IRASA derived aperiodic component of the spectrum.

Parameters
freqs1d array

Frequency vector, in linear space.

psd_aperidic1d array

Power values, in linear space.

Returns
interceptfloat

Fit intercept value.

slopefloat

Fit slope value.

Notes

This fits a linear function of the form y = ax + b to the log-log aperiodic power spectrum.