MuonChamberResidual Class Reference

#include <MuonChamberResidual.h>

Inheritance diagram for MuonChamberResidual:

Public Types
enum	{ kDT13, kDT2, kCSC }

Public Member Functions
virtual void	addResidual (const TrajectoryStateOnSurface *, const TransientTrackingRecHit *)=0
AlignableDetOrUnitPtr	chamberAlignable () const
DetId	chamberId () const
double	chi2 () const
double	global_hitresid (int i) const
double	global_residual () const
double	global_resslope () const
align::GlobalPoint	global_stubpos ()
align::GlobalPoint	global_trackpos ()
int	hitlayer (int i) const
double	hitposition (int i) const
double	hitresid (int i) const
DetId	localid (int i) const
	MuonChamberResidual (edm::ESHandle< GlobalTrackingGeometry > globalGeometry, AlignableNavigator *navigator, DetId chamberId, const AlignableDetOrUnitPtr &chamberAlignable)
int	ndof () const
int	numHits () const
double	residual () const
double	residual_error () const
double	resslope () const
double	resslope_error () const
double	segdxdz () const
double	segdydz () const
double	segx () const
double	segy () const
virtual void	setSegmentResidual (const reco::MuonChamberMatch *, const reco::MuonSegmentMatch *)=0
virtual double	signConvention () const
double	trackdxdz () const
double	trackdydz () const
double	trackx () const
double	tracky () const
int	type () const
virtual	~MuonChamberResidual ()

Protected Attributes
AlignableDetOrUnitPtr	m_chamberAlignable
DetId	m_chamberId
double	m_chi2
edm::ESHandle < GlobalTrackingGeometry >	m_globalGeometry
std::vector< double >	m_individual_weight
std::vector< double >	m_individual_x
std::vector< double >	m_individual_y
std::vector< DetId >	m_localIDs
std::vector< double >	m_localResids
AlignableNavigator *	m_navigator
int	m_ndof
int	m_numHits
double	m_residual
double	m_residual_error
double	m_resslope
double	m_resslope_error
double	m_segdxdz
double	m_segdydz
double	m_segx
double	m_segy
double	m_sign
double	m_trackdxdz
double	m_trackdydz
double	m_trackx
double	m_tracky
int	m_type

Detailed Description

Abstract base class for muon chamber residulas

Id:

Author

J. Pivarski - Texas A&M University pivar.nosp@m.ski@.nosp@m.physi.nosp@m.cs.t.nosp@m.amu.e.nosp@m.du

Id:

Author

V. Khotilovich - Texas A&M University khoti.nosp@m.lov@.nosp@m.cern..nosp@m.ch

Definition at line 24 of file MuonChamberResidual.h.

Member Enumeration Documentation

anonymous enum

Enumerator
kDT13
kDT2
kCSC

Definition at line 28 of file MuonChamberResidual.h.

       {
    kDT13,
    kDT2,
    kCSC
  };

Constructor & Destructor Documentation

MuonChamberResidual::MuonChamberResidual	(	edm::ESHandle< GlobalTrackingGeometry >	globalGeometry,
		AlignableNavigator *	navigator,
		DetId	chamberId,
		const AlignableDetOrUnitPtr &	chamberAlignable
	)

Definition at line 14 of file MuonChamberResidual.cc.

                                                                                       :
    m_globalGeometry(globalGeometry)
  , m_navigator(navigator)
  , m_chamberId(chamberId)
  , m_chamberAlignable(chamberAlignable)
  , m_numHits(0)
  , m_type(-1)
  , m_sign(0.)
  , m_chi2(-999.)
  , m_ndof(-1)
  , m_residual(-999.)
  , m_residual_error(-999.)
  , m_resslope(-999.)
  , m_resslope_error(-999.)
  , m_trackdxdz(-999.)
  , m_trackdydz(-999.)
  , m_trackx(-999.)
  , m_tracky(-999.)
  , m_segdxdz(-999.)
  , m_segdydz(-999.)
  , m_segx(-999.)
  , m_segy(-999.)
{}

virtual MuonChamberResidual::~MuonChamberResidual ( )

inlinevirtual

Definition at line 37 of file MuonChamberResidual.h.

{}

Member Function Documentation

virtual void MuonChamberResidual::addResidual ( const TrajectoryStateOnSurface *  , const TransientTrackingRecHit *    )

pure virtual

Implemented in MuonCSCChamberResidual, MuonDT13ChamberResidual, MuonDT2ChamberResidual, MuonTrackCSCChamberResidual, MuonTrackDT13ChamberResidual, and MuonTrackDT2ChamberResidual.

AlignableDetOrUnitPtr MuonChamberResidual::chamberAlignable ( ) const

inline

Definition at line 51 of file MuonChamberResidual.h.

References m_chamberAlignable.

Referenced by global_stubpos(), global_trackpos(), AlignmentMonitorSegmentDifferences::processMuonResidualsFromTrack(), and MuonAlignmentFromReference::processMuonResidualsFromTrack().

{ return m_chamberAlignable; }

DetId MuonChamberResidual::chamberId ( ) const

inline

Definition at line 49 of file MuonChamberResidual.h.

References m_chamberId.

{ return m_chamberId; }

double MuonChamberResidual::chi2 ( ) const

inline

Definition at line 60 of file MuonChamberResidual.h.

References m_chi2.

Referenced by AlignmentMonitorMuonSystemMap1D::processMuonResidualsFromTrack(), and MuonAlignmentFromReference::processMuonResidualsFromTrack().

{ return m_chi2; }

double MuonChamberResidual::global_hitresid

(

int

i

)

const

Definition at line 66 of file MuonChamberResidual.cc.

References hitresid(), and signConvention().

{
  return hitresid(i) * signConvention();
}

double MuonChamberResidual::global_residual

(

)

const

Definition at line 54 of file MuonChamberResidual.cc.

References residual(), and signConvention().

Referenced by AlignmentMonitorMuonSystemMap1D::processMuonResidualsFromTrack(), and AlignmentMonitorSegmentDifferences::processMuonResidualsFromTrack().

{
  return residual() * signConvention();
}

double MuonChamberResidual::global_resslope

(

)

const

Definition at line 60 of file MuonChamberResidual.cc.

References resslope(), and signConvention().

Referenced by AlignmentMonitorMuonSystemMap1D::processMuonResidualsFromTrack(), and AlignmentMonitorSegmentDifferences::processMuonResidualsFromTrack().

{
  return resslope() * signConvention();
}

align::GlobalPoint MuonChamberResidual::global_stubpos

(

)

Definition at line 48 of file MuonChamberResidual.cc.

References chamberAlignable(), segx(), segy(), Alignable::surface(), and AlignableSurface::toGlobal().

Referenced by AlignmentMonitorMuonSystemMap1D::processMuonResidualsFromTrack().

{
  return chamberAlignable()->surface().toGlobal(align::LocalPoint(segx(), segy(), 0.));
}

align::GlobalPoint MuonChamberResidual::global_trackpos

(

)

Definition at line 42 of file MuonChamberResidual.cc.

References chamberAlignable(), Alignable::surface(), AlignableSurface::toGlobal(), trackx(), and tracky().

Referenced by AlignmentMonitorMuonSystemMap1D::processMuonResidualsFromTrack().

{
  return chamberAlignable()->surface().toGlobal(align::LocalPoint(trackx(), tracky(), 0.));
}

int MuonChamberResidual::hitlayer

(

int

i

)

const

Definition at line 79 of file MuonChamberResidual.cc.

References MuonSubdetId::CSC, MuonSubdetId::DT, DTLayerId::layer(), CSCDetId::layer(), m_chamberId, m_localIDs, DetId::subdetId(), and DTSuperLayerId::superlayer().

{  // only difference between DTs and CSCs is the DetId subclass
  assert(0 <= i  &&  i < int(m_localIDs.size()));
  if (m_chamberId.subdetId() == MuonSubdetId::DT) {
    DTLayerId layerId(m_localIDs[i].rawId());
    return 4*(layerId.superlayer() - 1) + layerId.layer();
  }
  else if (m_chamberId.subdetId() == MuonSubdetId::CSC) {
    CSCDetId layerId(m_localIDs[i].rawId());
    return layerId.layer();
  }
  else assert(false);
}

double MuonChamberResidual::hitposition

(

int

i

)

const

Definition at line 94 of file MuonChamberResidual.cc.

References MuonSubdetId::CSC, MuonSubdetId::DT, m_chamberId, m_globalGeometry, m_localIDs, funct::pow(), mathSSE::sqrt(), DetId::subdetId(), PV3DBase< T, PVType, FrameType >::x(), and PV3DBase< T, PVType, FrameType >::y().

{
  assert(0 <= i  &&  i < int(m_localIDs.size()));
  if (m_chamberId.subdetId() == MuonSubdetId::DT) {
    align::GlobalPoint pos = m_globalGeometry->idToDet(m_localIDs[i])->position();
    return sqrt(pow(pos.x(), 2) + pow(pos.y(), 2));                   // R for DTs
  }
  else if (m_chamberId.subdetId() == MuonSubdetId::CSC) {
    return m_globalGeometry->idToDet(m_localIDs[i])->position().z();  // Z for CSCs
  }
  else assert(false);
}

double MuonChamberResidual::hitresid

(

int

i

)

const

Definition at line 72 of file MuonChamberResidual.cc.

References i, m_localIDs, and m_localResids.

Referenced by global_hitresid().

{
  assert(0 <= i  &&  i < int(m_localIDs.size()));
  return m_localResids[i];
}

DetId MuonChamberResidual::localid ( int  i ) const

inline

Definition at line 83 of file MuonChamberResidual.h.

References i, and m_localIDs.

{ return m_localIDs[i];  }

int MuonChamberResidual::ndof ( ) const

inline

Definition at line 61 of file MuonChamberResidual.h.

References m_ndof.

Referenced by AlignmentMonitorMuonSystemMap1D::processMuonResidualsFromTrack(), and MuonAlignmentFromReference::processMuonResidualsFromTrack().

{ return m_ndof; }

int MuonChamberResidual::numHits ( ) const

inline

Definition at line 53 of file MuonChamberResidual.h.

References m_numHits.

Referenced by AlignmentMonitorMuonSystemMap1D::processMuonResidualsFromTrack(), AlignmentMonitorSegmentDifferences::processMuonResidualsFromTrack(), and MuonAlignmentFromReference::processMuonResidualsFromTrack().

{ return m_numHits; }

double MuonChamberResidual::residual ( ) const

inline

Definition at line 55 of file MuonChamberResidual.h.

References m_residual.

Referenced by MuonCSCChamberResidual::addResidual(), MuonDT2ChamberResidual::addResidual(), MuonDT13ChamberResidual::addResidual(), global_residual(), and MuonAlignmentFromReference::processMuonResidualsFromTrack().

{ return m_residual; }

double MuonChamberResidual::residual_error ( ) const

inline

Definition at line 56 of file MuonChamberResidual.h.

References m_residual_error.

{ return m_residual_error; }

double MuonChamberResidual::resslope ( ) const

inline

Definition at line 57 of file MuonChamberResidual.h.

References m_resslope.

Referenced by global_resslope(), and MuonAlignmentFromReference::processMuonResidualsFromTrack().

{ return m_resslope; }

double MuonChamberResidual::resslope_error ( ) const

inline

Definition at line 58 of file MuonChamberResidual.h.

References m_resslope_error.

{ return m_resslope_error; }

double MuonChamberResidual::segdxdz ( ) const

inline

Definition at line 68 of file MuonChamberResidual.h.

References m_segdxdz.

{ return m_segdxdz; }

double MuonChamberResidual::segdydz ( ) const

inline

Definition at line 69 of file MuonChamberResidual.h.

References m_segdydz.

{ return m_segdydz; }

double MuonChamberResidual::segx ( ) const

inline

Definition at line 70 of file MuonChamberResidual.h.

References m_segx.

Referenced by global_stubpos().

{ return m_segx; }

double MuonChamberResidual::segy ( ) const

inline

Definition at line 71 of file MuonChamberResidual.h.

References m_segy.

Referenced by global_stubpos().

{ return m_segy; }

virtual void MuonChamberResidual::setSegmentResidual ( const reco::MuonChamberMatch *  , const reco::MuonSegmentMatch *    )

pure virtual

Implemented in MuonCSCChamberResidual, MuonDT13ChamberResidual, MuonDT2ChamberResidual, MuonTrackCSCChamberResidual, MuonTrackDT13ChamberResidual, and MuonTrackDT2ChamberResidual.

virtual double MuonChamberResidual::signConvention ( ) const

inlinevirtual

Definition at line 47 of file MuonChamberResidual.h.

References m_sign.

Referenced by global_hitresid(), global_residual(), and global_resslope().

{return m_sign; }

double MuonChamberResidual::trackdxdz ( ) const

inline

Definition at line 63 of file MuonChamberResidual.h.

References m_trackdxdz.

Referenced by MuonAlignmentFromReference::processMuonResidualsFromTrack().

{ return m_trackdxdz; }

double MuonChamberResidual::trackdydz ( ) const

inline

Definition at line 64 of file MuonChamberResidual.h.

References m_trackdydz.

Referenced by MuonAlignmentFromReference::processMuonResidualsFromTrack().

{ return m_trackdydz; }

double MuonChamberResidual::trackx ( ) const

inline

Definition at line 65 of file MuonChamberResidual.h.

References m_trackx.

Referenced by global_trackpos(), AlignmentMonitorSegmentDifferences::processMuonResidualsFromTrack(), and MuonAlignmentFromReference::processMuonResidualsFromTrack().

{ return m_trackx; }

double MuonChamberResidual::tracky ( ) const

inline

Definition at line 66 of file MuonChamberResidual.h.

References m_tracky.

Referenced by global_trackpos(), AlignmentMonitorSegmentDifferences::processMuonResidualsFromTrack(), and MuonAlignmentFromReference::processMuonResidualsFromTrack().

{ return m_tracky; }

int MuonChamberResidual::type ( ) const

inline

Definition at line 45 of file MuonChamberResidual.h.

References m_type.

Referenced by cuy.ValElement::__init__(), Vispa.Plugins.ConfigEditor.ConfigDataAccessor.ConfigDataAccessor::inputCommands(), Vispa.Plugins.ConfigEditor.ConfigDataAccessor.ConfigDataAccessor::outputCommands(), Vispa.Plugins.ConfigEditor.ConfigDataAccessor.ConfigDataAccessor::outputEventContent(), and Vispa.Plugins.ConfigEditor.ConfigDataAccessor.ConfigDataAccessor::properties().

{ return m_type; }

Member Data Documentation

AlignableDetOrUnitPtr MuonChamberResidual::m_chamberAlignable

protected

Definition at line 89 of file MuonChamberResidual.h.

Referenced by MuonCSCChamberResidual::addResidual(), MuonDT2ChamberResidual::addResidual(), MuonDT13ChamberResidual::addResidual(), and chamberAlignable().

DetId MuonChamberResidual::m_chamberId

protected

Definition at line 88 of file MuonChamberResidual.h.

Referenced by chamberId(), hitlayer(), hitposition(), MuonCSCChamberResidual::MuonCSCChamberResidual(), MuonDT13ChamberResidual::MuonDT13ChamberResidual(), MuonDT2ChamberResidual::MuonDT2ChamberResidual(), MuonTrackCSCChamberResidual::MuonTrackCSCChamberResidual(), MuonTrackDT13ChamberResidual::MuonTrackDT13ChamberResidual(), and MuonTrackDT2ChamberResidual::MuonTrackDT2ChamberResidual().

double MuonChamberResidual::m_chi2

protected

Definition at line 100 of file MuonChamberResidual.h.

Referenced by chi2(), MuonHitsChamberResidual::segment_fit(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and MuonTrackDT2ChamberResidual::setSegmentResidual().

edm::ESHandle<GlobalTrackingGeometry> MuonChamberResidual::m_globalGeometry

protected

Definition at line 86 of file MuonChamberResidual.h.

Referenced by MuonCSCChamberResidual::addResidual(), MuonDT13ChamberResidual::addResidual(), MuonDT2ChamberResidual::addResidual(), hitposition(), MuonCSCChamberResidual::MuonCSCChamberResidual(), MuonDT13ChamberResidual::MuonDT13ChamberResidual(), MuonDT2ChamberResidual::MuonDT2ChamberResidual(), MuonTrackCSCChamberResidual::MuonTrackCSCChamberResidual(), MuonTrackDT13ChamberResidual::MuonTrackDT13ChamberResidual(), and MuonTrackDT2ChamberResidual::MuonTrackDT2ChamberResidual().

std::vector<double> MuonChamberResidual::m_individual_weight

protected

Definition at line 96 of file MuonChamberResidual.h.

Referenced by MuonCSCChamberResidual::addResidual(), MuonDT13ChamberResidual::addResidual(), MuonDT2ChamberResidual::addResidual(), and MuonHitsChamberResidual::segment_fit().

std::vector<double> MuonChamberResidual::m_individual_x

protected

Definition at line 94 of file MuonChamberResidual.h.

Referenced by MuonCSCChamberResidual::addResidual(), MuonDT13ChamberResidual::addResidual(), MuonDT2ChamberResidual::addResidual(), and MuonHitsChamberResidual::segment_fit().

std::vector<double> MuonChamberResidual::m_individual_y

protected

Definition at line 95 of file MuonChamberResidual.h.

Referenced by MuonCSCChamberResidual::addResidual(), MuonDT13ChamberResidual::addResidual(), MuonDT2ChamberResidual::addResidual(), and MuonHitsChamberResidual::segment_fit().

std::vector<DetId> MuonChamberResidual::m_localIDs

protected

Definition at line 92 of file MuonChamberResidual.h.

Referenced by MuonCSCChamberResidual::addResidual(), MuonDT2ChamberResidual::addResidual(), MuonDT13ChamberResidual::addResidual(), hitlayer(), hitposition(), hitresid(), and localid().

std::vector<double> MuonChamberResidual::m_localResids

protected

Definition at line 93 of file MuonChamberResidual.h.

Referenced by MuonCSCChamberResidual::addResidual(), MuonDT2ChamberResidual::addResidual(), MuonDT13ChamberResidual::addResidual(), and hitresid().

AlignableNavigator* MuonChamberResidual::m_navigator

protected

Definition at line 87 of file MuonChamberResidual.h.

int MuonChamberResidual::m_ndof

protected

Definition at line 101 of file MuonChamberResidual.h.

Referenced by ndof(), MuonHitsChamberResidual::segment_fit(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and MuonTrackDT2ChamberResidual::setSegmentResidual().

int MuonChamberResidual::m_numHits

protected

Definition at line 91 of file MuonChamberResidual.h.

Referenced by MuonCSCChamberResidual::addResidual(), MuonDT2ChamberResidual::addResidual(), MuonDT13ChamberResidual::addResidual(), numHits(), MuonHitsChamberResidual::segment_fit(), MuonTrackDT2ChamberResidual::setSegmentResidual(), MuonTrackDT13ChamberResidual::setSegmentResidual(), and MuonTrackCSCChamberResidual::setSegmentResidual().

double MuonChamberResidual::m_residual

protected

Definition at line 102 of file MuonChamberResidual.h.

Referenced by residual(), MuonHitsChamberResidual::segment_fit(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and MuonTrackDT2ChamberResidual::setSegmentResidual().

double MuonChamberResidual::m_residual_error

protected

Definition at line 103 of file MuonChamberResidual.h.

Referenced by residual_error(), MuonHitsChamberResidual::segment_fit(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and MuonTrackDT2ChamberResidual::setSegmentResidual().

double MuonChamberResidual::m_resslope

protected

Definition at line 104 of file MuonChamberResidual.h.

Referenced by resslope(), MuonHitsChamberResidual::segment_fit(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and MuonTrackDT2ChamberResidual::setSegmentResidual().

double MuonChamberResidual::m_resslope_error

protected

Definition at line 105 of file MuonChamberResidual.h.

Referenced by resslope_error(), MuonHitsChamberResidual::segment_fit(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and MuonTrackDT2ChamberResidual::setSegmentResidual().

double MuonChamberResidual::m_segdxdz

protected

Definition at line 110 of file MuonChamberResidual.h.

Referenced by segdxdz(), MuonHitsChamberResidual::segment_fit(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and MuonTrackDT2ChamberResidual::setSegmentResidual().

double MuonChamberResidual::m_segdydz

protected

Definition at line 111 of file MuonChamberResidual.h.

Referenced by segdydz(), MuonHitsChamberResidual::segment_fit(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and MuonTrackDT2ChamberResidual::setSegmentResidual().

double MuonChamberResidual::m_segx

protected

Definition at line 112 of file MuonChamberResidual.h.

Referenced by MuonHitsChamberResidual::segment_fit(), segx(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and MuonTrackDT2ChamberResidual::setSegmentResidual().

double MuonChamberResidual::m_segy

protected

Definition at line 113 of file MuonChamberResidual.h.

Referenced by MuonHitsChamberResidual::segment_fit(), segy(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and MuonTrackDT2ChamberResidual::setSegmentResidual().

double MuonChamberResidual::m_sign

protected

Definition at line 99 of file MuonChamberResidual.h.

Referenced by MuonCSCChamberResidual::MuonCSCChamberResidual(), MuonDT13ChamberResidual::MuonDT13ChamberResidual(), MuonDT2ChamberResidual::MuonDT2ChamberResidual(), MuonTrackCSCChamberResidual::MuonTrackCSCChamberResidual(), MuonTrackDT13ChamberResidual::MuonTrackDT13ChamberResidual(), MuonTrackDT2ChamberResidual::MuonTrackDT2ChamberResidual(), and signConvention().

double MuonChamberResidual::m_trackdxdz

protected

Definition at line 106 of file MuonChamberResidual.h.

Referenced by MuonHitsChamberResidual::segment_fit(), MuonTrackDT2ChamberResidual::setSegmentResidual(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and trackdxdz().

double MuonChamberResidual::m_trackdydz

protected

Definition at line 107 of file MuonChamberResidual.h.

Referenced by MuonHitsChamberResidual::segment_fit(), MuonTrackDT2ChamberResidual::setSegmentResidual(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and trackdydz().

double MuonChamberResidual::m_trackx

protected

Definition at line 108 of file MuonChamberResidual.h.

Referenced by MuonHitsChamberResidual::segment_fit(), MuonTrackDT2ChamberResidual::setSegmentResidual(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and trackx().

double MuonChamberResidual::m_tracky

protected

Definition at line 109 of file MuonChamberResidual.h.

Referenced by MuonHitsChamberResidual::segment_fit(), MuonTrackDT2ChamberResidual::setSegmentResidual(), MuonTrackDT13ChamberResidual::setSegmentResidual(), MuonTrackCSCChamberResidual::setSegmentResidual(), and tracky().

int MuonChamberResidual::m_type

protected

Definition at line 98 of file MuonChamberResidual.h.

Referenced by MuonCSCChamberResidual::MuonCSCChamberResidual(), MuonDT13ChamberResidual::MuonDT13ChamberResidual(), MuonDT2ChamberResidual::MuonDT2ChamberResidual(), MuonTrackCSCChamberResidual::MuonTrackCSCChamberResidual(), MuonTrackDT13ChamberResidual::MuonTrackDT13ChamberResidual(), MuonTrackDT2ChamberResidual::MuonTrackDT2ChamberResidual(), and type().