def _save_bads(*, bads, descriptions, bids_path):
"""Update the set of channels marked as bad.
Parameters
----------
bads : list
The complete list of bad channels.
descriptions : list
The values to be written to the `status_description` column.
"""
# We first make all channels not passed as bad here to be marked as good.
mark_channels(bids_path=bids_path, ch_names=[], status='good')
mark_channels(bids_path=bids_path,
ch_names=bads,
status='bad',
descriptions=descriptions)
def run():
"""Run the mark_channels command."""
from mne.commands.utils import get_optparser
parser = get_optparser(__file__,
usage="usage: %prog options args",
prog_prefix='mne_bids',
version=mne_bids.__version__)
parser.add_option('--ch_name',
dest='ch_names',
action='append',
default=[],
help='The names of the bad channels. If multiple '
'channels are bad, pass the --ch_name parameter '
'multiple times.')
parser.add_option('--status',
default='bad',
help='Status of the channels (Either "good", or "bad").')
parser.add_option('--description',
dest='descriptions',
action='append',
default=[],
help='Descriptions as to why the channels are bad. '
'Must match the number of bad channels provided. '
'Pass multiple times to supply more than one '
'value in that case.')
parser.add_option('--bids_root',
dest='bids_root',
help='The path of the folder containing the BIDS '
'dataset')
parser.add_option('--subject_id', dest='subject', help=('Subject name'))
parser.add_option('--session_id', dest='session', help='Session name')
parser.add_option('--task', dest='task', help='Task name')
parser.add_option('--acq',
dest='acquisition',
help='Acquisition parameter')
parser.add_option('--run', dest='run', help='Run number')
parser.add_option('--proc', dest='processing', help='Processing label.')
parser.add_option('--rec', dest='recording', help='Recording name')
parser.add_option('--type',
dest='datatype',
help='Recording data type, e.g. meg, ieeg or eeg')
parser.add_option('--suffix',
dest='suffix',
help='The filename suffix, i.e. the last part before '
'the extension')
parser.add_option('--ext',
dest='extension',
help='The filename extension, including the leading '
'period, e.g. .fif')
parser.add_option('--verbose',
dest='verbose',
action='store_true',
help='Whether do generate additional diagnostic output')
opt, args = parser.parse_args()
if args:
parser.print_help()
parser.error(f'Please do not specify arguments without flags. '
f'Got: {args}.\n')
if opt.bids_root is None:
parser.print_help()
parser.error('You must specify bids_root')
if opt.ch_names is None:
parser.print_help()
parser.error('You must specify some --ch_name parameters.')
status = opt.status
ch_names = [] if opt.ch_names == [''] else opt.ch_names
bids_path = BIDSPath(subject=opt.subject,
session=opt.session,
task=opt.task,
acquisition=opt.acquisition,
run=opt.run,
processing=opt.processing,
recording=opt.recording,
datatype=opt.datatype,
suffix=opt.suffix,
extension=opt.extension,
root=opt.bids_root)
bids_paths = bids_path.match()
# Only keep data we can actually read & write.
allowed_extensions = list(reader.keys())
bids_paths = [p for p in bids_paths if p.extension in allowed_extensions]
if not bids_paths:
logger.info('No matching files found. Please consider using a less '
'restrictive set of entities to broaden the search.')
return # XXX should be return with an error code?
logger.info(f'Marking channels {", ".join(ch_names)} as bad in '
f'{len(bids_paths)} recording(s) …')
for bids_path in bids_paths:
logger.info(f'Processing: {bids_path.basename}')
mark_channels(bids_path=bids_path,
ch_names=ch_names,
status=status,
descriptions=opt.descriptions,
verbose=opt.verbose)
# Read the (now BIDS-formatted) data and print a list of channels currently
# marked as bad.
raw = read_raw_bids(bids_path=bids_path, verbose=False)
print(f'The following channels are currently marked as bad:\n'
f' {", ".join(raw.info["bads"])}\n')
# %%
# So currently, two channels are marked as bad: ``EEG 053`` and ``MEG 2443``.
# Let's assume that through visual data inspection, we found that two more
# MEG channels are problematic, and we would like to mark them as bad as well.
# To do that, we simply add them to a list, which we then pass to
# :func:`mne_bids.mark_channels`:
bads = ['MEG 0112', 'MEG 0131']
mark_channels(bids_path=bids_path, ch_names=bads, status='bad',
verbose=False)
# %%
# That's it! Let's verify the result.
raw = read_raw_bids(bids_path=bids_path, verbose=False)
print(f'After marking MEG 0112 and MEG 0131 as bad, the following channels '
f'are now marked as bad:\n {", ".join(raw.info["bads"])}\n')
# %%
# As you can see, now a total of **four** channels is marked as bad: the ones
# that were already bad when we started – ``EEG 053`` and ``MEG 2443`` – and
# the two channels we passed to :func:`mne_bids.mark_channels` –
# ``MEG 0112`` and ``MEG 0131``. This shows that marking bad channels via
# :func:`mne_bids.mark_channels`, by default, is an **additive** procedure,
# which allows you to mark additional channels as bad while retaining the