random

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Description

Description:

Random real (floating point) value from 0 (inclusive) to x (not inclusive).

Syntax

Syntax:

Number = random x

Parameters:

x: Number

Return Value:

Number

Examples

Example 1:

_rNumber = random 1;

Example 2:

_rNumber = random -10;

Example 3:

To select random value from an array: _array = ["apples", "pears", "bananas", "M16"]; _random = _array select floor random count _array;

Additional Information

See also:

Math Commands

Notes

i

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Notes

• Be careful using random numbers in multiplayer, each client will come up with a different result. See multiplayer tutorials for more general information about locality.
• The number returned is unlikely to be a whole number.
  To return a whole number use either round, ceil or floor together with random:
  

x=round(random 5) will return 0,1,2,3,4 or 5. (non-uniform distribution, 0 and 5 are half as likely to be selected than any of the other numbers)
x=floor(random 5) will return 0,1,2,3 or 4. (uniform distribution, all numbers have the same probability of being selected)
x=ceil(random 5) will return 0,1,2,3,4 or 5. (0 is very unlikely, but possible, as ceil 0 is 0)

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Posted on July 12, 2015 - 20:32 (UTC)

Hcpookie

Random selections including negative numbers can be obtained via: Failed to parse (PNG conversion failed; check for correct installation of latex and dvipng (or dvips + gs + convert)): _Xrnd = round(random 200) -100; This will yield numbers between -100 and 100.