PLearn::VMatrixFromDistribution Class Reference

#include <VMatrixFromDistribution.h>

Inheritance diagram for PLearn::VMatrixFromDistribution:

[legend]Collaboration diagram for PLearn::VMatrixFromDistribution:

[legend]List of all members.


Public Member Functions
	VMatrixFromDistribution ()
virtual void	build ()
	Should call simply inherited::build(), then this class's build_().
virtual void	makeDeepCopyFromShallowCopy (map< const void , void > &copies)
	Transforms a shallow copy into a deep copy.
	PLEARN_DECLARE_OBJECT (VMatrixFromDistribution)
virtual real	get (int i, int j) const
	returns element (i,j)
virtual void	getSubRow (int i, int j, Vec v) const
	fills v with the subrow i lying between columns j (inclusive) and j+v.length() (exclusive)
virtual void	getRow (int i, Vec v) const
	copies row i into v (which must have appropriate length equal to the VMat's width)
virtual void	getColumn (int i, Vec v) const
	copies column i into v (which must have appropriate length equal to the VMat's length)
virtual void	getMat (int i, int j, Mat m) const
	copies the submatrix starting at i,j into m (which must have appropriate length and width)
virtual Mat	toMat () const
Public Attributes
PP< PDistribution >	distr
string	mode
long	generator_seed
int	nsamples
Vec	mins
Vec	maxs
int	samples_per_dim
Static Protected Member Functions
void	declareOptions (OptionList &ol)
	Declares this class' options.
Protected Attributes
Mat	data
	Will hold the data sampled from the distribution.
Private Types
typedef VMatrix	inherited
Private Member Functions
void	build_ ()
	This does the actual building.

Member Typedef Documentation

typedef VMatrix PLearn::VMatrixFromDistribution::inherited [private]

Reimplemented from PLearn::VMatrix.
Definition at line 55 of file VMatrixFromDistribution.h.

Constructor & Destructor Documentation

PLearn::VMatrixFromDistribution::VMatrixFromDistribution ( )

Definition at line 46 of file VMatrixFromDistribution.cc.
References mode, PLearn::sample(), and samples_per_dim.

Member Function Documentation

void PLearn::VMatrixFromDistribution::build ( ) [virtual]

Should call simply inherited::build(), then this class's build_().
This method should be callable again at later times, after modifying some option fields to change the "architecture" of the object.
Reimplemented from PLearn::VMatrix.
Definition at line 153 of file VMatrixFromDistribution.cc.
References build_().

void PLearn::VMatrixFromDistribution::build_ ( ) [private]

This does the actual building.

Reimplemented from PLearn::VMatrix.
Definition at line 89 of file VMatrixFromDistribution.cc.
References data, distr, generator_seed, k, maxs, mins, mode, nsamples, PLERROR, PLearn::pow(), PLearn::TMat< T >::resize(), samples_per_dim, PLearn::TVec< T >::subVec(), PLearn::Vec, and PLearn::TMat< T >::width().
Referenced by build().

void PLearn::VMatrixFromDistribution::declareOptions ( OptionList & ol ) [static, protected]

Declares this class' options.

Reimplemented from PLearn::VMatrix.
Definition at line 58 of file VMatrixFromDistribution.cc.
References PLearn::declareOption(), and PLearn::OptionList.

real PLearn::VMatrixFromDistribution::get ( int i,

int j

) const [virtual]

returns element (i,j)

Reimplemented from PLearn::VMatrix.
Definition at line 164 of file VMatrixFromDistribution.cc.
References data.

void PLearn::VMatrixFromDistribution::getColumn ( int i,

Vec v

) const [virtual]

copies column i into v (which must have appropriate length equal to the VMat's length)

Reimplemented from PLearn::VMatrix.
Definition at line 167 of file VMatrixFromDistribution.cc.
References PLearn::TMat< T >::column(), and data.

void PLearn::VMatrixFromDistribution::getMat ( int i,

int j,

Mat m

) const [virtual]

copies the submatrix starting at i,j into m (which must have appropriate length and width)

Reimplemented from PLearn::VMatrix.
Definition at line 176 of file VMatrixFromDistribution.cc.
References data, PLearn::TMat< T >::length(), PLearn::TMat< T >::subMat(), and PLearn::TMat< T >::width().

void PLearn::VMatrixFromDistribution::getRow ( int i,

Vec v

) const [virtual]

copies row i into v (which must have appropriate length equal to the VMat's width)

Reimplemented from PLearn::VMatrix.
Definition at line 173 of file VMatrixFromDistribution.cc.
References data.

void PLearn::VMatrixFromDistribution::getSubRow ( int i,

int j,

Vec v

) const [virtual]

fills v with the subrow i lying between columns j (inclusive) and j+v.length() (exclusive)

Reimplemented from PLearn::VMatrix.
Definition at line 170 of file VMatrixFromDistribution.cc.
References data, and PLearn::TVec< T >::length().

void PLearn::VMatrixFromDistribution::makeDeepCopyFromShallowCopy ( map< const void *, void * > & copies ) [virtual]

Transforms a shallow copy into a deep copy.

Reimplemented from PLearn::VMatrix.
Definition at line 159 of file VMatrixFromDistribution.cc.

PLearn::VMatrixFromDistribution::PLEARN_DECLARE_OBJECT ( VMatrixFromDistribution )

Mat PLearn::VMatrixFromDistribution::toMat ( ) const [virtual]

returns a Mat with the same data as this VMat The default version of this method copies the data in a fresh Mat created in memory However this method will typically be overrided by subclasses (such as MemoryVMatrix) whose internal representation is already a Mat in order to return this Mat directly to avoid a new memory allocation and copy of elements. In this case, and in this case only, modifying the elements of the returned Mat will logically result in modified elements in the original VMatrix view of it.
Reimplemented from PLearn::VMatrix.
Definition at line 179 of file VMatrixFromDistribution.cc.
References data.