Spectral power

This function wraps scipy’s implementation of Welch’s method.

feat.pwr.get_pwr(data, fs, window='hann', nperseg=None, noverlap=None, nfft=None, detrend='linear')

Wraps scipy’s implementation of Welch’s method to calculate spectral power

Parameters:

• data (np.ndarray, shape(samp_cnt,)) – Input data.

• fs (int) – Sampling frequency.

• window (string) – Windowing function to be used, defaults to “hann”.

• nperseg (int) – Number of datapoints in each segment, defaults to fs for 1 Hz bins.

• noverlap (int) – Number of overlapping samples.

• nfft (int) – Number of datapoints in each FFT, defaults to fs for 1 Hz bins.

• detrend (string) – Flag for different detrending options (‘None’, ‘constant’, linear’), defaults to ‘linear’.

Returns:

• binslist

  Frequency bins.

• connlist

  Power values of the respective frequency bins.

Return type:

tuple of (list, list)