POP_EEGFILT	Interactively filter EEG dataset data using eegfilt()
Usage:	>> EEGOUT = pop_eegfilt( EEG, locutoff, hicutoff, filtorder);
Graphical interface:
"Lower edge ..."	[edit box] Lower edge of the frequency pass band (Hz) Same as the 'locutoff' command line input.
"Higher edge ..."	[edit box] Higher edge of the frequency pass band (Hz) Same as the 'hicutoff' command line input.
"Notch filter"	[edit box] provide the notch range, i.e. [45 55] for 50 Hz). This option overwrites the low and high edge limits given above. Set the 'locutoff' and 'hicutoff' values to the values entered as parameters, and set 'revfilt to 1, to swap from bandpass to notch filtering.
"Filter length"	[edit box] Filter lenghth in point (default: see >> help eegfilt). Same as 'filtorder' optional input.
Inputs:
EEG	input dataset
locutoff	lower edge of the frequency pass band (Hz) {0 -> lowpass}
hicutoff	higher edge of the frequency pass band (Hz) {0 -> highpass}
filtorder	length of the filter in points {default 3*fix(srate/locutoff)}
revfilt	[0|1] Reverse filter polarity (from bandpass to notch filter). Default is 0 (bandpass).
usefft	[0|1] 1 use FFT filtering instead of FIR. Default is 0.
Outputs:
EEGOUT	output dataset
Author:	Arnaud Delorme, CNL / Salk Institute, 2001
See also:	eegfilt(), eegfiltfft(), eeglab()

See the matlab file pop_eegfilt.m (may require other functions)

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