RandomUniform ( minimum ; maximum )

Returns random values from a uniform distribution

Average rating: 4.4 (34 votes) Log in to vote

Jeremy Bante

https://github.com/jbante/

Sample input:

List (
RandomUniform ( -10 ; 10 );
RandomUniform ( -10 ; 10 );
RandomUniform ( -10 ; 10 );
RandomUniform ( -10 ; 10 );
RandomUniform ( -10 ; 10 );
RandomUniform ( -10 ; 10 );
RandomUniform ( -10 ; 10 );
RandomUniform ( -10 ; 10 );
RandomUniform ( -10 ; 10 );
RandomUniform ( -10 ; 10 )
)

Sample output:

9.0386356785893440246
-.4952840320765972138
5.4820564016699790954
1.0624830890446901322
6.2695151381194591522
-5.4272786807268857956
-9.16864905506372451782
-6.7148288991302251816
.0019517727196216584
-8.4394451044499874115

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

/**
 * =====================================
 * RandomUniform ( minimum ; maximum )
 *
 * PURPOSE:
 *		Creates a random continuous value between "minimum" and "maximum". When
 *		called repeatedly, RandomUniform returns values that are uniformly
 *		distributed between minimum and maximum.
 *
 * RETURNS:
 *		A number representing a random variate from a uniform distribution
 *		between minimum and maximum.
 *
 * PARAMETERS:
 *		minimum: A number specifying the lower bound for the distribution.
 *		maximum: A number specifying the upper bound for the distribution.
 *
 * DEPENDENCIES: none
 *
 * HISTORY:
 *		CREATED on 2010-02-05 by Jeremy Bante <http://scr.im/jbante>.
 *
 * REFERENCES:
 *		http://en.wikipedia.org/wiki/Uniform_distribution_(continuous)
 * =====================================
 */
Case (
	minimum ≤ maximum;	// arguments are in order
		Random * (maximum - minimum ) + minimum;

	// Else, arguments are in reverse order
		Random * (minimum - maximum ) + maximum
)

Creates a random continuous value between "minimum" and "maximum". When called repeatedly, RandomUniform returns values that are uniformly distributed between minimum and maximum.

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RandomUniform ( minimum ; maximum )

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