xlinear

Class MatrixExtensions

java.lang.Object

xlinear.MatrixExtensions

public class MatrixExtensions
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static DenseMatrix	copy(DenseMatrix model)
static Matrix	copy(Matrix model)
static SparseMatrix	copy(SparseMatrix model)
static DenseMatrix	denseCopy(Matrix matrix)
static double	dot(Matrix vector1, Matrix vector2)
static double	doubleValue(Matrix m)
static void	increment(Matrix m, int entry, double value)
static void	increment(Matrix m, int row, int col, double value)
static boolean	isColumnVector(Matrix m)
static boolean	isRowVector(Matrix m)
static double	norm(Matrix m)
static DenseMatrix	operator_multiply(java.lang.Number scalar, DenseMatrix m)
static Matrix	operator_multiply(java.lang.Number scalar, Matrix m)
static SparseMatrix	operator_multiply(java.lang.Number scalar, SparseMatrix m)
static SparseMatrix	sparseCopy(Matrix matrix)
static double	sum(Matrix m)
static double[][]	toArray(Matrix m)
static org.apache.commons.math3.linear.BlockRealMatrix	toCommonsMatrix(Matrix m)
static org.apache.commons.math3.linear.ArrayRealVector	toCommonsVector(Matrix m)
static double[]	vectorToArray(Matrix m)

Methods inherited from class java.lang.Object

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

Method Detail

copy

public static SparseMatrix copy(SparseMatrix model)

copy

public static DenseMatrix copy(DenseMatrix model)

copy

public static Matrix copy(Matrix model)

denseCopy

public static DenseMatrix denseCopy(Matrix matrix)

sparseCopy

public static SparseMatrix sparseCopy(Matrix matrix)

sum

public static double sum(Matrix m)

norm

public static double norm(Matrix m)

toArray

public static double[][] toArray(Matrix m)

vectorToArray

public static double[] vectorToArray(Matrix m)

toCommonsMatrix

public static org.apache.commons.math3.linear.BlockRealMatrix toCommonsMatrix(Matrix m)

toCommonsVector

public static org.apache.commons.math3.linear.ArrayRealVector toCommonsVector(Matrix m)

operator_multiply

public static DenseMatrix operator_multiply(java.lang.Number scalar,
                                            DenseMatrix m)

operator_multiply

public static SparseMatrix operator_multiply(java.lang.Number scalar,
                                             SparseMatrix m)

operator_multiply

public static Matrix operator_multiply(java.lang.Number scalar,
                                       Matrix m)

dot

public static double dot(Matrix vector1,
                         Matrix vector2)

doubleValue

public static double doubleValue(Matrix m)

isColumnVector

public static boolean isColumnVector(Matrix m)

isRowVector

public static boolean isRowVector(Matrix m)

increment

public static void increment(Matrix m,
                             int row,
                             int col,
                             double value)

increment

public static void increment(Matrix m,
                             int entry,
                             double value)