Difference between revisions of "random"

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m (Corrected distribution)
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|p23= mid: [[Number]] |Parameter 23=
 
|p23= mid: [[Number]] |Parameter 23=
 
|p24= max: [[Number]] |Parameter 24=
 
|p24= max: [[Number]] |Parameter 24=
|r2= [[Number]] |Return value 2=
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|r2= [[Number]]|Return value 2=
  
 
|s3= seed [[random]] x        (''Since Arma 3 v1.67.139663'')|Syntax 3=
 
|s3= seed [[random]] x        (''Since Arma 3 v1.67.139663'')|Syntax 3=
 
|p41= seed: [[Number]] |Parameter 41=
 
|p41= seed: [[Number]] |Parameter 41=
 
|p42= x: [[Number]] |Parameter 42=
 
|p42= x: [[Number]] |Parameter 42=
|r3= [[Number]] |Return value 3=
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|r3= [[Number]] - value from 0 to x |Return value 3=
  
 
|s4= seed [[random]] [x, y]        (''Since Arma 3 v1.67.139663'') |Syntax 4=
 
|s4= seed [[random]] [x, y]        (''Since Arma 3 v1.67.139663'') |Syntax 4=
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|p63= x: [[Number]] |Parameter 63=
 
|p63= x: [[Number]] |Parameter 63=
 
|p64= y: [[Number]] |Parameter 64=
 
|p64= y: [[Number]] |Parameter 64=
|r4= [[Number]] |Return value 4=
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|r4= [[Number]] - value from 0 to 1|Return value 4=
 
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Revision as of 00:10, 2 September 2019

Template:Command

Notes

Posted on July 12, 2015 - 20:32 (UTC)
Hcpookie
Random selections including negative numbers can be obtained via: _Xrnd = round(random 200) -100; This will yield numbers between -100 and 100.
  • 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)
Posted on July 22, 2018 - 12:58 (UTC+2)
Lou Montana
Repartition comparison
Formula 0 1 2 3 4 5 6 7 8 9
floor random 10; 10% 10% 10% 10% 10% 10% 10% 10% 10% 10%
floor random [0, 5, 10] 0% 2% 7% 17% 25% 25% 17% 7% 2% 0%
floor random [0, 10, 0] 0% 0% 1% 2% 5% 9% 14% 19% 24% 26%
floor random [0, 10, 5] 0% 0% 0% 1% 2% 5% 9% 16% 28% 38%