baseCode.dataStructure.matrix
Class DenseDoubleMatrix1D

java.lang.Object
  cern.colt.PersistentObject
      cern.colt.matrix.impl.AbstractMatrix
          cern.colt.matrix.impl.AbstractMatrix1D
              cern.colt.matrix.DoubleMatrix1D
                  cern.colt.matrix.impl.DenseDoubleMatrix1D
                      baseCode.dataStructure.matrix.DenseDoubleMatrix1D

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

public class DenseDoubleMatrix1D

extends cern.colt.matrix.impl.DenseDoubleMatrix1D

Use this class when fast iteration over the matrix is of primary interest. The primary change is that getQuick is faster, and toArray returns the actual elements, not a copy. The latter is an important change to the contract of DouleMatrix1D, the former might have some unintended consequences because it hasn't been tested thoroughly.

Copyright (c) 2004 Columbia University

Version:

$Id: DenseDoubleMatrix1D.java,v 1.3 2004/08/17 21:17:41 pavlidis Exp $

Author:

pavlidis

See Also:

Serialized Form

Field Summary

Fields inherited from class cern.colt.matrix.impl.DenseDoubleMatrix1D

elements

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

	DenseDoubleMatrix1D(double[] values)
	DenseDoubleMatrix1D(int size)
protected	DenseDoubleMatrix1D(int size, double[] elements, int zero, int stride)

Method Summary

double	getQuick(int i) This is an optimized version of getQuick.
double[]	toArray() WARNING unlike the superclass, this returns the actual underlying array, not a copy.

Methods inherited from class cern.colt.matrix.impl.DenseDoubleMatrix1D

assign, assign, assign, assign, assign, cardinality, haveSharedCellsRaw, index, like, like2D, setQuick, swap, toArray, viewSelectionLike, zDotProduct, zSum

Methods inherited from class cern.colt.matrix.DoubleMatrix1D

aggregate, aggregate, assign, cardinality, copy, equals, equals, get, getContent, getNonZeros, getNonZeros, haveSharedCells, like, set, toString, 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, 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

Constructor Detail

DenseDoubleMatrix1D

protected DenseDoubleMatrix1D(int size,
                              double[] elements,
                              int zero,
                              int stride)

Parameters:

size -

elements -

zero -

stride -

DenseDoubleMatrix1D

public DenseDoubleMatrix1D(double[] values)

Parameters:

values -

DenseDoubleMatrix1D

public DenseDoubleMatrix1D(int size)

Parameters:

size -

Method Detail

getQuick

public double getQuick(int i)

This is an optimized version of getQuick. Implementation note: the superclass uses an add and a multiply. This is faster, but there might be unforseen consequences...

See Also:

DoubleMatrix1D.getQuick(int)

toArray

public double[] toArray()

WARNING unlike the superclass, this returns the actual underlying array, not a copy.

Returns:

the elements

See Also:

DoubleMatrix1D.toArray()