RollingMatrix Class Reference

#include <RollingMatrix.h>

Collaboration diagram for RollingMatrix:

Public Member Functions
void	correl (vector< double > &ret, const vector< double > &input, unsigned int row) const
double	dotProduct (const vector< double > &input, unsigned int row, unsigned int startColumn) const
double	get (unsigned int row, unsigned int column) const
RollingMatrix &	operator= (const RollingMatrix &other)
void	resize (unsigned int numRows, unsigned int numColumns)
	RollingMatrix ()
void	rollToNextRow ()
void	sumIntoEntry (double input, unsigned int row, unsigned int column)
void	sumIntoRow (const vector< double > &input, unsigned int row)
void	zeroOutRow (unsigned int row)
	~RollingMatrix ()

Private Attributes
unsigned int	currentStartRow_
unsigned int	ncolumns_
unsigned int	nrows_
vector< SparseVector >	rows_

Detailed Description

Definition at line 16 of file RollingMatrix.h.

Constructor & Destructor Documentation

RollingMatrix::RollingMatrix

(

)

Definition at line 16 of file RollingMatrix.cpp.

        : nrows_(0), ncolumns_(0), currentStartRow_(0)
{;}

RollingMatrix::~RollingMatrix

(

)

Definition at line 21 of file RollingMatrix.cpp.

{;}

Member Function Documentation

void RollingMatrix::correl	(	vector< double > &	ret,
		const vector< double > &	input,
		unsigned int	row
	)		const

Definition at line 99 of file RollingMatrix.cpp.

References dotProduct(), and ncolumns_.

Referenced by SeqSynHandler::vProcess().

{
    if ( ret.size() < ncolumns_ )
        ret.resize( ncolumns_, 0.0 );
    for ( unsigned int i = 0; i < ncolumns_; ++i ) {
        ret[i] += dotProduct( input, row, i );
    }
}

Here is the call graph for this function:

Here is the caller graph for this function:

double RollingMatrix::dotProduct	(	const vector< double > &	input,
		unsigned int	row,
		unsigned int	startColumn
	)		const

startColumn is the middle of the kernel.

Definition at line 68 of file RollingMatrix.cpp.

References currentStartRow_, nrows_, and rows_.

Referenced by correl().

{
    unsigned int index = (row + currentStartRow_) % nrows_;
    const SparseVector& sv = rows_[index];
    unsigned int i2 = input.size()/2;
    unsigned int istart = (startColumn >= i2) ? 0 : i2-startColumn;
    unsigned int colstart = (startColumn <= i2) ? 0 : startColumn - i2;
    unsigned int iend = (sv.size()-startColumn > i2 ) ? input.size() :
            i2 - startColumn + sv.size();

    // if ( iend >= istart ) cout << startColumn << i2 << istart << iend << colstart << "\n";
    double ret = 0;
    for (unsigned int i = istart, j = 0; i < iend; ++i, ++j )
        ret += sv[j + colstart] * input[i];

    /*
    double ret = 0;
    if ( input.size() + startColumn <= sv.size() ) {
        for (unsigned int i = 0; i < input.size(); ++i )
            ret += sv[i + startColumn] * input[i];
    } else if ( sv.size() > startColumn ) {
        unsigned int end = sv.size() - startColumn;
        for (unsigned int i = 0; i < end; ++i )
            ret += sv[i + startColumn] * input[i];
    }
    */
    return ret;
}

Here is the caller graph for this function:

double RollingMatrix::get	(	unsigned int	row,
		unsigned int	column
	)		const

Definition at line 45 of file RollingMatrix.cpp.

References currentStartRow_, nrows_, and rows_.

Referenced by SeqSynHandler::getHistory().

{
    unsigned int index = (row + currentStartRow_ ) % nrows_;
    return rows_[index][column];
}

Here is the caller graph for this function:

RollingMatrix & RollingMatrix::operator=

(

const RollingMatrix &

other

)

Definition at line 24 of file RollingMatrix.cpp.

References currentStartRow_, ncolumns_, nrows_, and rows_.

{
    nrows_ = other.nrows_;
    ncolumns_ = other.ncolumns_;
    currentStartRow_ = other.currentStartRow_;
    rows_ = other.rows_;
    return *this;
}

void RollingMatrix::resize	(	unsigned int	numRows,
		unsigned int	numColumns
	)

Definition at line 34 of file RollingMatrix.cpp.

References currentStartRow_, ncolumns_, nrows_, and rows_.

Referenced by SeqSynHandler::SeqSynHandler(), SeqSynHandler::setHistoryTime(), SeqSynHandler::setSeqDt(), and SeqSynHandler::vSetNumSynapses().

{
    rows_.resize( nrows );
    nrows_ = nrows;
    ncolumns_ = ncolumns;
    for ( unsigned int i = 0; i < nrows; ++i ) {
        rows_[i].resize( ncolumns, 0.0 );
    }
    currentStartRow_ = 0;
}

Here is the caller graph for this function:

void RollingMatrix::rollToNextRow

(

)

Definition at line 116 of file RollingMatrix.cpp.

References currentStartRow_, nrows_, and zeroOutRow().

Referenced by SeqSynHandler::vProcess().

{
    if ( currentStartRow_ == 0 )
        currentStartRow_ = nrows_ - 1;
    else
        currentStartRow_--;
    zeroOutRow( 0 );
}

Here is the call graph for this function:

Here is the caller graph for this function:

void RollingMatrix::sumIntoEntry	(	double	input,
		unsigned int	row,
		unsigned int	column
	)

Definition at line 51 of file RollingMatrix.cpp.

References currentStartRow_, nrows_, and rows_.

{
    unsigned int index = (row + currentStartRow_ ) % nrows_;
    SparseVector& sv = rows_[index];
    sv[column] += input;
}

void RollingMatrix::sumIntoRow	(	const vector< double > &	input,
		unsigned int	row
	)

Definition at line 58 of file RollingMatrix.cpp.

References currentStartRow_, nrows_, and rows_.

Referenced by SeqSynHandler::vProcess().

{
    unsigned int index = (row + currentStartRow_) % nrows_;
    SparseVector& sv = rows_[index];

    for (unsigned int i = 0; i < input.size(); ++i )
        sv[i] += input[i];
}

Here is the caller graph for this function:

void RollingMatrix::zeroOutRow

(

unsigned int

row

)

Definition at line 110 of file RollingMatrix.cpp.

References currentStartRow_, nrows_, and rows_.

Referenced by rollToNextRow().

{
    unsigned int index = (row + currentStartRow_) % nrows_;
    rows_[index].assign( rows_[index].size(), 0.0 );
}

Here is the caller graph for this function:

Member Data Documentation

unsigned int RollingMatrix::currentStartRow_

private

Definition at line 56 of file RollingMatrix.h.

Referenced by dotProduct(), get(), operator=(), resize(), rollToNextRow(), sumIntoEntry(), sumIntoRow(), and zeroOutRow().

unsigned int RollingMatrix::ncolumns_

private

Definition at line 55 of file RollingMatrix.h.

Referenced by correl(), operator=(), and resize().

unsigned int RollingMatrix::nrows_

private

Definition at line 54 of file RollingMatrix.h.

Referenced by dotProduct(), get(), operator=(), resize(), rollToNextRow(), sumIntoEntry(), sumIntoRow(), and zeroOutRow().

vector< SparseVector > RollingMatrix::rows_

private

Definition at line 58 of file RollingMatrix.h.

Referenced by dotProduct(), get(), operator=(), resize(), sumIntoEntry(), sumIntoRow(), and zeroOutRow().

---

The documentation for this class was generated from the following files:

• moose-core/synapse/RollingMatrix.h
• moose-core/synapse/RollingMatrix.cpp