mne.io.get_channel_type_constants#
- mne.io.get_channel_type_constants(include_defaults=False)[source]#
Return all known channel types, and associated FIFF constants.
- Parameters:
- include_defaultsbool
Whether to include default values for “unit” and “coil_type” for all entries (see Notes). Defaults are generally based on values normally present for a VectorView MEG system. Defaults to
False.
- Returns:
- channel_types
dict The keys are channel type strings, and the values are dictionaries of FIFF constants for “kind”, and possibly “unit” and “coil_type”.
- channel_types
Notes
Values which might vary within a channel type across real data recordings are excluded unless
include_defaults=True. For example, “ref_meg” channels may have coil typeFIFFV_COIL_MAGNES_OFFDIAG_REF_GRAD,FIFFV_COIL_VV_MAG_T3, etc (depending on the recording system), so no “coil_type” entry is given for “ref_meg” unlessinclude_defaultsis requested.