Generate a Random Number (New Number With Each Instance)

roman_tobler
roman_tobler New Altair Community Member
edited November 5 in Community Q&A

Hi there

 

I'm working on a process that creates two random numbers. The following ways have been tested already:

  • I used the "Generate Data" operator and tried to use both the attributes as well the label
  • I used the "Generate Attributes" rand()

I got to a positive result with each scenario. My result is showing me two numbers the way I want, alright. However, if I run the process a second time the numbers do not change (no random new number is generated) - the same numbers are the output of every new instance of the process.

What operator or work-around is to be used in order to get new random numbers for each time I run the process anew?

 

Many thanks in advance!

Roman

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Answers

  • Thomas_Ott
    Thomas_Ott New Altair Community Member

    @roman_tobler i believe the random number generation is tied to the seed that RapidMiner generates at startup. I would change the seed to generate a different random number sequence. 

  • roman_tobler
    roman_tobler New Altair Community Member

    Hi Thomas

    Many thanks for your answer. The solution was to set the Random Seed as "-1" on the process level (global) and not on the operator itself.

    Cheers

    Roman

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