| EEG_CHECKSET | Check consistency of dataset fields. |
| Structure of an EEG dataset under EEGLAB: | |
EEG.data |
data array (chans x frames x epochs) |
EEG.setname |
name of the dataset |
EEG.filename |
filename of the dataset |
EEG.filepath |
filepath of the dataset |
EEG.namechan |
channel labels (will be deprecated) |
EEG.chanlocs |
name of file containing names and positions of the channels on the scalp |
EEG.pnts |
number of frames (time points) per epoch (trial) |
EEG.nbchan |
number of channels in each epoch |
EEG.trials |
number of epochs (trials) in the dataset |
EEG.srate |
sampling rate (in Hz) |
EEG.xmin |
epoch start time (in seconds) |
EEG.xmax |
epoch end time (in seconds) |
| ICA variables: | |
EEG.icaact |
ica activations (components x frames x epochs) |
EEG.icasphere |
sphere array returned by ica |
EEG.icaweights |
weight array returned by ica |
EEG.icawinv |
inverse ica weight matrix giving the projected activity of the components at the electrodes. |
| Event and epoch structures: | |
EEG.event |
event structure (any number of events per epoch) |
EEG.epoch |
epoch structure (one structure per epoch) --> See the web page dealing with this issue |
| Variables used for manual and semi-automatic data rejection: | |
EEG.stats.kurtc |
component kurtosis values |
EEG.stats.kurtg |
global kurtosis of components |
EEG.stats.kurta |
kurtosis of accepted epochs |
EEG.stats.kurtr |
kurtosis of rejected epochs |
EEG.stats.kurtd |
kurtosis of spatial distribution |
EEG.reject.entropy |
entropy of epochs |
EEG.reject.entropyc |
entropy of components |
EEG.reject.threshold |
rejection thresholds |
EEG.reject.icareject |
epochs rejected by ica criteria |
EEG.reject.gcompreject |
rejected ica components |
EEG.reject.sigreject |
epochs rejected by single-channel criteria |
EEG.reject.elecreject |
epochs rejected by raw data criteria |
EEG.reject.compreject |
deprecated |
EEG.reject.comptrial |
deprecated |
EEG.reject.eegentropy |
deprecated |
EEG.reject.eegkurt |
deprecated |
EEG.reject.eegkurtg |
deprecated |
| Usage: | >> [EEGOUT, res] = eeg_checkset( EEG ); |
| Inputs: | |
EEG |
dataset structure |
| Outputs: | |
EEGOUT |
output dataset |
| Author: | Arnaud Delorme, CNL / Salk Institute, 2001 |
| See also: | eeglab |