fiff_proj.h File Reference

SSP projection item: a named projection vector set with active/desired flags, parsed from FIFFB_PROJ_ITEM. More...

#include "fiff_global.h"
#include "fiff_types.h"
#include "fiff_named_matrix.h"
#include <QSharedPointer>
#include <QString>
#include <QStringList>
#include <QMap>
#include <Eigen/Core>
#include <memory>

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Classes
class	FIFFLIB::FiffProj
	Single SSP projection item: kind, active flag, desired flag and the named projection vector matrix. More...

Namespaces
namespace	FIFFLIB
	FIFF file I/O, in-memory data structures and high-level readers/writers.

Functions
std::ostream &	FIFFLIB::operator<< (std::ostream &out, const FIFFLIB::FiffProj &p_FiffProj)

Detailed Description

SSP projection item: a named projection vector set with active/desired flags, parsed from FIFFB_PROJ_ITEM.

SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2012-2026 MNE-CPP Authors

Author

Christoph Dinh chris.nosp@m.toph.nosp@m..dinh.nosp@m.@mne.nosp@m.-cpp..nosp@m.org; Christof Pieloth pielo.nosp@m.th@l.nosp@m.abp.h.nosp@m.twk-.nosp@m.leipz.nosp@m.ig.d.nosp@m.e; Lorenz Esch loren.nosp@m.z.es.nosp@m.ch@tu.nosp@m.-ilm.nosp@m.enau..nosp@m.de; Juan GPC jgarc.nosp@m.iapr.nosp@m.ieto@.nosp@m.mgh..nosp@m.harva.nosp@m.rd.e.nosp@m.du; Gabriel Motta gabri.nosp@m.elbe.nosp@m.nmott.nosp@m.a@gm.nosp@m.ail.c.nosp@m.om

Since

0.1.0

Date

September 2012

Signal-Space Projection (SSP) removes a low-rank subspace from MEG/EEG data; the projector itself is stored under FIFFB_PROJ / FIFFB_PROJ_ITEM tags. FiffProj is the C++ wrapper for one such item: a description, the kind (FIFFV_PROJ_ITEM_FIELD, FIFFV_PROJ_ITEM_EEG_AVREF, ...), the active flag, the desired flag and the named matrix carrying the projection vectors keyed by channel name. The list of FiffProj inside FiffInfo::projs is what FiffRawData and FiffEvoked apply (or de-apply) via make_projector during raw / evoked processing, with field-for-field parity to mne.Projection / mne.compute_proj_* in MNE-Python.

Definition in file fiff_proj.h.