Show labels:
labels(edf)Get channel (by name or number):
get_channel(eeg, channel="Cz")
get_channel(eeg, channel=18)Rename channels:
rename_channel!(eeg, channel=18, name="Cz")Delete channels (epochs and channels may be specified using number, range or vector):
delete_channel!(eeg, channel=1)
delete_channel!(eeg, channel=10:18)
delete_channel!(eeg, channel=[1, 5, 9])
delete_channel!(eeg, channel=[1:5; 9; 10])(!) Note the use of ; if range is specified.
Keep channel:
keep_channel!(eeg, channel=1:4)Replace channel 1 with channel 18:
ch18 = extract_channel(eeg, channel=18)
replace_channel!(eeg, channel=1, signal=ch18)Split EEG into 10-second epochs:
e10 = epoch(eeg, ep_len=10)Split into 5-second epochs and then average into one epoch:
e5avg = epoch(eeg, ep_len=5)
erp!(e5avg)
info(e5avg)Split into epochs at the event marker (each epoch is 1500 ms long and starts 200 ms before the event marker):
erp = epoch(eeg, marker="stimulus", offset=0.2, ep_len=1.5)(!) Many processing operations (such as filtering or ICA decomposition) should be performed on non-epoched (continuous) signal (e.g. due to the edge artifacts that may occur in case of filtering or the minimum required signal length for ICA decompositon).
Get 1st epoch:
e10e1 = extract_epoch(e10, epoch=1)
info(e10e1)Delete epochs:
delete_epoch!(e10, epoch=1)
delete_epoch!(e10, epoch=8:10)
delete_epoch!(e10, epoch=[1:5; 9; 10])(!) Note the use of ; if range is specified.
Keep epochs:
keep_epoch!(e10, epoch=[1, 3, 5, 9])View markers:
view_marker(eeg)(!) Value of channel refers to channels affected by the
marker; 0 means all channels; values other than 0 are not supported.
Delete 1st marker:
delete_marker!(eeg, n=1)Edit 1st marker:
edit_marker!(eeg, n=1, id="Note", start=1, len=1, desc="test")Add marker at position start (in seconds):
add_marker!(eeg, id="Note", start=1, len=1, desc="test")