Package ubic.basecode.dataStructure.matrix

Class FastRowAccessDoubleMatrix<R,C>

java.lang.Object

ubic.basecode.dataStructure.matrix.AbstractMatrix<R,C,Double>

ubic.basecode.dataStructure.matrix.DoubleMatrix<R,C>

ubic.basecode.dataStructure.matrix.FastRowAccessDoubleMatrix<R,C>

All Implemented Interfaces:

Serializable, Matrix2D<R,C,Double>, PrimitiveMatrix<R,C,Double>

public class FastRowAccessDoubleMatrix<R,C>
extends DoubleMatrix<R,C>

Dense 2D matrix implementation designed for very fast access of entire rows.

Implementation note: The key difference between this and the DenseDouble2DMatrixNamed is that this delegates to a DoubleArrayList[], while DenseDouble2DMatrixNamed delegates to a DenseDoubleMatrix2D.

Author:

pavlidis

See Also:

Serialized Form

Field Summary

Fields inherited from class ubic.basecode.dataStructure.matrix.AbstractMatrix

MAX_ROWS_TO_PRINT

Constructor Summary

Constructors

Constructor	Description
FastRowAccessDoubleMatrix(double[][] t)	Implementation note: The input matrix is NOT COPIED (due to the way colt DoubleArrayList(double[]) is implemented).F
FastRowAccessDoubleMatrix(int rows, int cols)

Method Summary

Modifier and Type	Method	Description
double[][]	asArray()
int	columns()	Get the number of columns the matrix has.
DoubleMatrix<R,C>	copy()	Create a deep copy of this
double	get(int x, int y)
Double[]	getColObj(int col)
DoubleMatrix<R,C>	getColRange(int startCol, int endCol)
double[]	getColumn(int col)
Double	getObject(int row, int col)
double[]	getRow(int i)
cern.colt.list.DoubleArrayList	getRowArrayList(int i)
Double[]	getRowObj(int row)
DoubleMatrix<R,C>	getRowRange(int startRow, int endRow)
boolean	isMissing(int i, int j)	Check if the value at a given index is missing.
int	rows()	Get the number of rows the matrix has
void	set(int x, int y, Double value)
int	size()
DoubleMatrix<R,C>	subsetColumns(List<C> columns)	Create a copy of this matrix with only the selected columns, in the selected order.
DoubleMatrix<R,C>	subsetRows(List<R> rowNames)	Create a copy of this matrix with only the selected rows, in the selected order.
DoubleMatrix<C,R>	transpose()
cern.colt.matrix.DoubleMatrix1D	viewColumn(int column)
cern.colt.matrix.DoubleMatrix1D	viewRow(int j)

Methods inherited from class ubic.basecode.dataStructure.matrix.DoubleMatrix

getByKeys, getColumnByName, getEntry, getRawMatrix, getRowByName, setByKeys, sortByColumnAbsoluteValues, toString

Methods inherited from class ubic.basecode.dataStructure.matrix.AbstractMatrix

addColumnName, addRowName, asDoubles, assign, checkColRange, checkRowRange, containsColumnName, containsRowName, getColIndexByName, getColName, getColNames, getRowIndexByName, getRowName, getRowNameMapIterator, getRowNames, hasColNames, hasMissingValues, hasRow, hasRowNames, numMissing, setColumnName, setColumnNames, setRowName, setRowNames

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface ubic.basecode.dataStructure.matrix.Matrix2D

addColumnName, asDoubles, assign, containsColumnName, containsRowName, getColIndexByName, getColName, getColNames, getRowIndexByName, getRowName, getRowNameMapIterator, getRowNames, hasColNames, hasRow, hasRowNames, numMissing, setColumnName, setColumnNames, setRowName, setRowNames

Constructor Detail

FastRowAccessDoubleMatrix

public FastRowAccessDoubleMatrix(double[][] t)

Implementation note: The input matrix is NOT COPIED (due to the way colt DoubleArrayList(double[]) is implemented).F

Parameters:

t -

FastRowAccessDoubleMatrix

public FastRowAccessDoubleMatrix(int rows,
                                 int cols)

Parameters:

rows -

cols -

Method Detail

asArray

public double[][] asArray()

Specified by:

asArray in class DoubleMatrix<R,C>

Returns:

double[][]

columns

public int columns()

Description copied from interface: Matrix2D

Get the number of columns the matrix has.

Returns:

int

copy

public DoubleMatrix<R,C> copy()

Description copied from class: DoubleMatrix

Create a deep copy of this

Specified by:

copy in class DoubleMatrix<R,C>

Returns:

a deep copy of this

get

public double get(int x,
                  int y)

Specified by:

get in class DoubleMatrix<R,C>

Returns:

getColObj

public Double[] getColObj(int col)

Returns:

getColRange

public DoubleMatrix<R,C> getColRange(int startCol,
                                           int endCol)

Specified by:

getColRange in class DoubleMatrix<R,C>

Parameters:

startCol - inclusive, numbered from zero

endCol - inclusive, numbered from zero

Returns:

new matrix with just the requested range of columns from this

getColumn

public double[] getColumn(int col)

Specified by:

getColumn in class DoubleMatrix<R,C>

getObject

public Double getObject(int row,
                        int col)

Returns:

getRow

public double[] getRow(int i)

Specified by:

getRow in class DoubleMatrix<R,C>

getRowArrayList

public cern.colt.list.DoubleArrayList getRowArrayList(int i)

Specified by:

getRowArrayList in class DoubleMatrix<R,C>

getRowObj

public Double[] getRowObj(int row)

Returns:

getRowRange

public DoubleMatrix<R,C> getRowRange(int startRow,
                                           int endRow)

Specified by:

getRowRange in class DoubleMatrix<R,C>

Parameters:

startRow - inclusive, numbered from zero

endRow - inclusive

Returns:

isMissing

public boolean isMissing(int i,
                         int j)

Description copied from interface: Matrix2D

Check if the value at a given index is missing.

Parameters:

i - row

j - column

Returns:

true if the value is missing, false otherwise.

rows

public int rows()

Description copied from interface: Matrix2D

Get the number of rows the matrix has

Returns:

int

set

public void set(int x,
                int y,
                Double value)

size

public int size()

Specified by:

size in class AbstractMatrix<R,C,Double>

subsetColumns

public DoubleMatrix<R,C> subsetColumns(List<C> columns)

Description copied from class: DoubleMatrix

Create a copy of this matrix with only the selected columns, in the selected order.

Specified by:

subsetColumns in class DoubleMatrix<R,C>

Returns:

subsetRows

public DoubleMatrix<R,C> subsetRows(List<R> rowNames)

Description copied from class: DoubleMatrix

Create a copy of this matrix with only the selected rows, in the selected order.

Specified by:

subsetRows in class DoubleMatrix<R,C>

Returns:

transpose

public DoubleMatrix<C,R> transpose()

Specified by:

transpose in class DoubleMatrix<R,C>

viewColumn

public cern.colt.matrix.DoubleMatrix1D viewColumn(int column)

Specified by:

viewColumn in class DoubleMatrix<R,C>

viewRow

public cern.colt.matrix.DoubleMatrix1D viewRow(int j)

Specified by:

viewRow in class DoubleMatrix<R,C>

Returns: