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| + | ===== FT_CHANNELSELECTION ===== | ||
| + | |||
| + | Note that this reference documentation is identical to the help that is displayed in MATLAB when you type "help ft_channelselection". | ||
| + | |||
| + | <html><pre> | ||
| + | <a href=/reference/ft_channelselection><font color=green>FT_CHANNELSELECTION</font></a> makes a selection of EEG and/or MEG channel labels. | ||
| + | This function translates the user-specified list of channels into channel | ||
| + | labels as they occur in the data. This channel selection procedure can be | ||
| + | used throughout FieldTrip. | ||
| + | |||
| + | You can specify a mixture of real channel labels and of special strings, | ||
| + | or index numbers that will be replaced by the corresponding channel | ||
| + | labels. Channels that are not present in the raw datafile are | ||
| + | automatically removed from the channel list. | ||
| + | |||
| + | E.g. the desired input specification can be: | ||
| + | 'all' is replaced by all channels in the datafile | ||
| + | 'gui' this will pop up a graphical user interface to select the channels | ||
| + | 'C*' is replaced by all channels that match the wildcard, e.g. C1, C2, C3, ... | ||
| + | '*1' is replaced by all channels that match the wildcard, e.g. C1, P1, F1, ... | ||
| + | 'M*1' is replaced by all channels that match the wildcard, e.g. MEG0111, MEG0131, MEG0131, ... | ||
| + | 'meg' is replaced by all MEG channels (works for CTF, 4D, Neuromag and Yokogawa) | ||
| + | 'megref' is replaced by all MEG reference channels (works for CTF and 4D) | ||
| + | 'meggrad' is replaced by all MEG gradiometer channels (works for Yokogawa and Neuromag306) | ||
| + | 'megplanar' is replaced by all MEG planar gradiometer channels (works for Neuromag306) | ||
| + | 'megmag' is replaced by all MEG magnetometer channels (works for Yokogawa and Neuromag306) | ||
| + | 'eeg' is replaced by all recognized EEG channels (this is system dependent) | ||
| + | 'eeg1020' is replaced by 'Fp1', 'Fpz', 'Fp2', 'F7', 'F3', ... | ||
| + | 'eog' is replaced by all recognized EOG channels | ||
| + | 'ecg' is replaced by all recognized ECG channels | ||
| + | 'nirs' is replaced by all channels recognized as NIRS channels | ||
| + | 'emg' is replaced by all channels in the datafile starting with 'EMG' | ||
| + | 'lfp' is replaced by all channels in the datafile starting with 'lfp' | ||
| + | 'mua' is replaced by all channels in the datafile starting with 'mua' | ||
| + | 'spike' is replaced by all channels in the datafile starting with 'spike' | ||
| + | 10 is replaced by the 10th channel in the datafile | ||
| + | |||
| + | Other channel groups are | ||
| + | 'EEG1010' with approximately 90 electrodes | ||
| + | 'EEG1005' with approximately 350 electrodes | ||
| + | 'EEGREF' for mastoid and ear electrodes (M1, M2, LM, RM, A1, A2) | ||
| + | 'MZ' for MEG zenith | ||
| + | 'ML' for MEG left | ||
| + | 'MR' for MEG right | ||
| + | 'MLx', 'MRx' and 'MZx' with x=C,F,O,P,T for left/right central, frontal, occipital, parietal and temporal | ||
| + | |||
| + | You can also exclude channels or channel groups using the following syntax | ||
| + | {'all', '-POz', '-Fp1', -EOG'} | ||
| + | |||
| + | See also <a href=/reference/ft_preprocessing><font color=green>FT_PREPROCESSING</font></a>, <a href=/reference/ft_senslabel><font color=green>FT_SENSLABEL</font></a>, <a href=/reference/ft_multiplotER><font color=green>FT_MULTIPLOTER</font></a>, <a href=/reference/ft_multiplotTFR><font color=green>FT_MULTIPLOTTFR</font></a>, | ||
| + | <a href=/reference/ft_singleplotER><font color=green>FT_SINGLEPLOTER</font></a>, <a href=/reference/ft_singleplotTFR><font color=green>FT_SINGLEPLOTTFR</font></a> | ||
| + | </pre></html> | ||
