eegprep.eeg_decodechan

eegprep.eeg_decodechan(chanlocs, chanstr, field='labels', ignoremissing=False)

Resolve channel identifiers to 0-based indices and labels.

Supports:

• chanlocs as a list-like of dicts, or a dict with key “chanlocs”.

• chanstr as an iterable of strings and/or integers.

• Matching on the specified field (e.g., “labels” or “type”).

• Numeric 0-based indices as input (returned directly after validation).

• Empty chanlocs with purely numeric input (indices passthrough).

Parameters

chanlocslist of dict or dict

Channel locations or {‘chanlocs’: […]}

chanstriterable

Channel identifiers (strings or ints)

fieldstr, optional

Field to match on (default ‘labels’)

ignoremissingbool, optional

Ignore missing channels (default False)

Returns

chanindslist

Sorted list of 0-based indices

chanlist_outlist

List of labels/types from chanlocs for those indices or indices if empty