Skip to main content
P
peterc24087392
Participant
August 19, 2023
Answered

How to generate random numbers that change by a limited value

  • August 19, 2023
  • 1 reply
  • 403 views

I'm trying to write a script to generate random numbers that only vary by a maximum amount each change. For example, if the first number is 0.76 and I want each generated number to be no more than .05 from the last so that the next number is between 0.71 and 0.81, etc.

 

The code I have now is:

var holdTime = .5;
seedRandom(Math.floor(time/holdTime), timeless = true);
random(0,10).toFixed(2)

 

So I have the numbers changing every half second to a value between 0.00 and 10.00, but  right now the value jumps too much between numbers. (It occurs to me that statistically, the number should continue to return to its original value if the upper and lower change values are equal)

    This topic has been closed for replies.
    Correct answer Dan Ebberts

    Like this maybe:

    var holdTime = .5;
seedRandom(index,true);
var curTime = 0;
var curValue = random(10);
while (curTime <= time){
  curValue += random(-.05,.05);
  curTime += holdTime;
}
curValue.toFixed(2)

    1 reply

    Dan Ebberts
    Community Expert
    Dan EbbertsCommunity ExpertCorrect answer
    Community Expert
    August 19, 2023

    Like this maybe:

    var holdTime = .5;
seedRandom(index,true);
var curTime = 0;
var curValue = random(10);
while (curTime <= time){
  curValue += random(-.05,.05);
  curTime += holdTime;
}
curValue.toFixed(2)
      P
      peterc24087392Author
      Participant
      August 19, 2023

      Exactly what I wanted! Thanks a ton.

      Terms & ConditionsAccessibility statement
      Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices