baseCode.dataStructure.matrix
Class RCDoubleMatrix1D

java.lang.Object
  cern.colt.PersistentObject
      cern.colt.matrix.impl.AbstractMatrix
          cern.colt.matrix.impl.AbstractMatrix1D
              cern.colt.matrix.DoubleMatrix1D
                  baseCode.dataStructure.matrix.RCDoubleMatrix1D

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

public class RCDoubleMatrix1D

extends cern.colt.matrix.DoubleMatrix1D

A row-compressed 1D matrix. The only deviation from the contract of DoubleMatrix1D is in apply(), which only operates on the non-empty elements. This implementation has a highly optimized dot product computer. If you need to compute the dot product of a RCDoubleMatrix1D with another DoubleMatrix1D, call zDotProduct on this, not on the other. This is because getQuick() and setQuick() are not very fast for this.

Copyright (c) 2004 Columbia University

Version:

$Id: RCDoubleMatrix1D.java,v 1.14 2005/01/05 02:01:02 pavlidis Exp $

Author:

pavlidis

See Also:

Serialized Form

Field Summary

protected cern.colt.list.IntArrayList	indexes
protected cern.colt.list.DoubleArrayList	values

Fields inherited from class cern.colt.matrix.impl.AbstractMatrix1D

size, stride, zero

Fields inherited from class cern.colt.matrix.impl.AbstractMatrix

isNoView

Fields inherited from class cern.colt.PersistentObject

serialVersionUID

Constructor Summary

RCDoubleMatrix1D(double[] values)

RCDoubleMatrix1D(int length)

RCDoubleMatrix1D(cern.colt.list.IntArrayList indexes, cern.colt.list.DoubleArrayList values)

Method Summary

cern.colt.matrix.DoubleMatrix1D	assign(cern.colt.function.DoubleFunction function) WARNING this only even assigns to the non-empty values, for performance reasons.
cern.colt.matrix.DoubleMatrix1D	forEachNonZero(cern.colt.function.DoubleFunction function) Apply the given function to each element non-zero element in the matrix.
double	getQuick(int index)
cern.colt.matrix.DoubleMatrix1D	like(int s)
cern.colt.matrix.DoubleMatrix2D	like2D(int rows, int columns)
void	setQuick(int column, double value)
java.lang.String	toString()
protected cern.colt.matrix.DoubleMatrix1D	viewSelectionLike(int[] offsets)
double	zDotProduct(cern.colt.matrix.DoubleMatrix1D y)
double	zSum()

Methods inherited from class cern.colt.matrix.DoubleMatrix1D

aggregate, aggregate, assign, assign, assign, assign, assign, cardinality, cardinality, copy, equals, equals, get, getContent, getNonZeros, getNonZeros, haveSharedCells, haveSharedCellsRaw, like, set, swap, toArray, toArray, view, viewFlip, viewPart, viewSelection, viewSelection, viewSorted, viewStrides, zDotProduct, zDotProduct, zDotProduct

Methods inherited from class cern.colt.matrix.impl.AbstractMatrix1D

_offset, _rank, checkIndex, checkIndexes, checkRange, checkSize, checkSize, index, setUp, setUp, size, stride, toStringShort, vFlip, vPart, vStrides

Methods inherited from class cern.colt.matrix.impl.AbstractMatrix

ensureCapacity, isView, trimToSize

Methods inherited from class cern.colt.PersistentObject

clone

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

indexes

protected cern.colt.list.IntArrayList indexes

values

protected cern.colt.list.DoubleArrayList values

Constructor Detail

RCDoubleMatrix1D

public RCDoubleMatrix1D(double[] values)

Parameters:

values -

RCDoubleMatrix1D

public RCDoubleMatrix1D(int length)

Parameters:

length -

RCDoubleMatrix1D

public RCDoubleMatrix1D(cern.colt.list.IntArrayList indexes,
                        cern.colt.list.DoubleArrayList values)

Parameters:

indexes - These MUST be in sorted order.

values - These MuST be in the same order as the indexes, meaning that indexes[0] is the column for values[0].

Method Detail

getQuick

public double getQuick(int index)

like

public cern.colt.matrix.DoubleMatrix1D like(int s)

like2D

public cern.colt.matrix.DoubleMatrix2D like2D(int rows,
                                              int columns)

setQuick

public void setQuick(int column,
                     double value)

viewSelectionLike

protected cern.colt.matrix.DoubleMatrix1D viewSelectionLike(int[] offsets)

forEachNonZero

public cern.colt.matrix.DoubleMatrix1D forEachNonZero(cern.colt.function.DoubleFunction function)

Apply the given function to each element non-zero element in the matrix.

Parameters:

function -

Returns:

zDotProduct

public double zDotProduct(cern.colt.matrix.DoubleMatrix1D y)

assign

public cern.colt.matrix.DoubleMatrix1D assign(cern.colt.function.DoubleFunction function)

WARNING this only even assigns to the non-empty values, for performance reasons. If you need to assign to any index, you have to use another way.

See Also:

DoubleMatrix1D.assign(cern.colt.function.DoubleFunction)

zSum

public double zSum()

toString

public java.lang.String toString()