Difference between revisions of "random"

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|x1= <pre>_rNumber = random 1</pre>  |= Example 1
|x1= <pre>_rNumber = random 1</pre>  |= Example 1
|x2= To select random value from an array:
<code>_array = ["apples", "pears", "bananas", "M16"];
_random = _array [[select]] [[floor]] [[random]] [[count]] _array;</code>  |= Example 2

Revision as of 14:06, 3 August 2013

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


Number = random x
x: Number
Return Value:


Example 1:
_rNumber = random 1
Example 2:
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


Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note


  • 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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