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Filters the data between the specified low cutoff and high cutoff frequencies (Hz) using a 2nd-order Butterworth filter.
Individual channels can be set to have different parameters by highlighting them in the "PARAMS" tab in the hidden drawer at the right side. The editor displays the parameters of the most recently selected channel(s).
To obtain the same filter in MatlabMATLAB, you can use "butter(2, [lowcut highcut]/(samplerate/2))". This is correct despite the fact that Matlab MATLAB's documentation claims it should produce a 4th-order filter (it uses a different convention).
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