CREATE_RANDOM_CAUCHY_MATRIX

This procedure creates a new matrix filled with Cauchy distributed random values using the parameters: Beta and shift. The formula is as follows: x = Beta tan (u) + shift. The u is a successive random number of a uniform distribution over the interval (-Pi/2, Pi/2).

Usage

The CREATE_RANDOM_CAUCHY_MATRIX stored procedure has the following syntax:

CREATE_RANDOM_CAUCHY_MATRIX(matrixOut,numberOfRows,numberOfColumns,shift,beta)

Parameters

matrixOut: The name of the matrix to be generated.; Type: NVARCHAR(ANY)
numberOfRows: The number of matrix rows.; Type: INT4
numberOfColumns: The number of matrix columns.; Type: INT4
shift: The value to be used for shift.; Type: DOUBLE
beta: The value to be used for Beta.; Type: DOUBLE

Returns

BOOLEAN TRUE, if successful.

Details

This procedure uses the MKL library.

Examples

CALL nzm..CREATE_RANDOM_CAUCHY_MATRIX ('A', 3,5, 1.0, 0.1);
CALL nzm..GET_NUM_COLS('A');
CALL nzm..GET_NUM_ROWS('A');
CALL nzm..ANY_NONZERO('A');
CALL nzm..DELETE_MATRIX ('A');

 CREATE_RANDOM_CAUCHY_MATRIX
-----------------------------
 t
(1 row)

 GET_NUM_COLS
--------------
 5
(1 row)

 GET_NUM_ROWS
--------------
 3
(1 row)

 ANY_NONZERO
-------------
 1
(1 row)

 DELETE_MATRIX
---------------
 t
(1 row)