mne.compute_proj_epochs

mne.compute_proj_epochs(epochs, n_grad=2, n_mag=2, n_eeg=2, n_jobs=1, desc_prefix=None, meg='separate', verbose=None)[source]

Compute SSP (spatial space projection) vectors on Epochs.

Parameters
epochsinstance of Epochs

The epochs containing the artifact.

n_gradint

Number of vectors for gradiometers.

n_magint

Number of vectors for magnetometers.

n_eegint

Number of vectors for EEG channels.

n_jobsint

The number of jobs to run in parallel (default 1). Requires the joblib package. Number of jobs to use to compute covariance.

desc_prefixstr | None

The description prefix to use. If None, one will be created based on the event_id, tmin, and tmax.

megstr

Can be ‘separate’ (default) or ‘combined’ to compute projectors for magnetometers and gradiometers separately or jointly. If ‘combined’, n_mag == n_grad is required and the number of projectors computed for MEG will be n_mag.

New in version 0.18.

verbosebool, str, int, or None

If not None, override default verbose level (see mne.verbose() and Logging documentation for more). If used, it should be passed as a keyword-argument only.

Returns
projs: list

List of projection vectors.

See also

compute_proj_raw, compute_proj_evoked