Package org.ejml.dense.row

Class RandomMatrices_ZDRM

java.lang.Object

org.ejml.dense.row.RandomMatrices_ZDRM

public class RandomMatrices_ZDRM
extends java.lang.Object

Contains a list of functions for creating random row complex matrices and vectors with different structures.

Constructor Summary

Constructors

Constructor	Description
RandomMatrices_ZDRM()

Method Summary

Modifier and Type	Method	Description
static void	fillHermitian(org.ejml.data.ZMatrixRMaj A, double min, double max, java.util.Random rand)	Assigns the provided square matrix to be a random Hermitian matrix with elements from min to max value.
static void	fillUniform(org.ejml.data.ZMatrixD1 mat, double min, double max, java.util.Random rand)	Sets each element in the matrix to a value drawn from an uniform distribution from 'min' to 'max' inclusive.
static void	fillUniform(org.ejml.data.ZMatrixRMaj mat, java.util.Random rand)	Sets each element in the matrix to a value drawn from an uniform distribution from 0 to 1 inclusive.
static org.ejml.data.ZMatrixRMaj	hermitian(int length, double min, double max, java.util.Random rand)	Creates a random Hermitian matrix with elements from min to max value.
static org.ejml.data.ZMatrixRMaj	hermitianPosDef(int width, java.util.Random rand)	Creates a random symmetric positive definite matrix.
static org.ejml.data.ZMatrixRMaj	rectangle(int numRow, int numCol, double min, double max, java.util.Random rand)	Returns a matrix where all the elements are selected independently from a uniform distribution between 'min' and 'max' inclusive.
static org.ejml.data.ZMatrixRMaj	rectangle(int numRow, int numCol, java.util.Random rand)	Returns a matrix where all the elements are selected independently from a uniform distribution between -1 and 1 inclusive.

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomMatrices_ZDRM

public RandomMatrices_ZDRM()

Method Detail

rectangle

public static org.ejml.data.ZMatrixRMaj rectangle(int numRow,
                                                  int numCol,
                                                  java.util.Random rand)

Returns a matrix where all the elements are selected independently from a uniform distribution between -1 and 1 inclusive.

Parameters:

numRow - Number of rows in the new matrix.

numCol - Number of columns in the new matrix.

rand - Random number generator used to fill the matrix.

Returns:

The randomly generated matrix.

rectangle

public static org.ejml.data.ZMatrixRMaj rectangle(int numRow,
                                                  int numCol,
                                                  double min,
                                                  double max,
                                                  java.util.Random rand)

Returns a matrix where all the elements are selected independently from a uniform distribution between 'min' and 'max' inclusive.

Parameters:

numRow - Number of rows in the new matrix.

numCol - Number of columns in the new matrix.

min - The minimum value each element can be.

max - The maximum value each element can be.

rand - Random number generator used to fill the matrix.

Returns:

The randomly generated matrix.

fillUniform

public static void fillUniform(org.ejml.data.ZMatrixRMaj mat,
                               java.util.Random rand)

Sets each element in the matrix to a value drawn from an uniform distribution from 0 to 1 inclusive.

Parameters:

mat - The matrix who is to be randomized. Modified.

rand - Random number generator used to fill the matrix.

fillUniform

public static void fillUniform(org.ejml.data.ZMatrixD1 mat,
                               double min,
                               double max,
                               java.util.Random rand)

Sets each element in the matrix to a value drawn from an uniform distribution from 'min' to 'max' inclusive.

Parameters:

min - The minimum value each element can be.

max - The maximum value each element can be.

mat - The matrix who is to be randomized. Modified.

rand - Random number generator used to fill the matrix.

hermitianPosDef

public static org.ejml.data.ZMatrixRMaj hermitianPosDef(int width,
                                                        java.util.Random rand)

Creates a random symmetric positive definite matrix.

Parameters:

width - The width of the square matrix it returns.

rand - Random number generator used to make the matrix.

Returns:

The random symmetric positive definite matrix.

hermitian

public static org.ejml.data.ZMatrixRMaj hermitian(int length,
                                                  double min,
                                                  double max,
                                                  java.util.Random rand)

Creates a random Hermitian matrix with elements from min to max value.

Parameters:

length - Width and height of the matrix.

min - Minimum value an element can have.

max - Maximum value an element can have.

rand - Random number generator.

Returns:

A symmetric matrix.

fillHermitian

public static void fillHermitian(org.ejml.data.ZMatrixRMaj A,
                                 double min,
                                 double max,
                                 java.util.Random rand)

Assigns the provided square matrix to be a random Hermitian matrix with elements from min to max value.

Parameters:

A - The matrix that is to be modified. Must be square. Modified.

min - Minimum value an element can have.

max - Maximum value an element can have.

rand - Random number generator.