Filter line noise out from ECoG channels

notch_channel(s, sample_rate, bands = c(60, 120, 180), width = c(1, 2, 2))

Arguments

s

signal, time domain

sample_rate

signal sample rate

bands

bands that will be filtered out

width

along with bands, half of the filter width. For example,if bands is 60Hz and width is 1Hz, then the notch filter lower bound is 60-1=59Hz and upper bound is 60+1=61Hz.