eelbrain.Butterworth

class eelbrain.Butterworth(low, high, order, sfreq=None)[source]

Butterworth filter

Parameters:

  • low – Low cutoff frequency.

  • high – High cutoff frequency.

  • order – Filter order.

  • sfreq – Downsample filtered signal to this sampling frequency.

Notes

Uses scipy.signal.butter().

Methods

filter(ndvar)

Filter an NDVar

filtfilt(ndvar)

Forward-backward filter an NDVar