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What happened with Permutation operator?

bibi Member Posts: 1 Contributor I
edited November 2018 in Help

Hi,

 

I am trying to perform y-randomization in RapidMiner and I read that it colud be done with Permutation operator. I found it  in Operator Reference for RapidMiner 4.5. The problem is that I can't locate this operator in RapidMiner 7.3...... Can anyone please tell me what happend and could y-randomization be done in RapidMiner 7.3?

 

Regards

Answers

  • mschmitzmschmitz Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,077  RM Data Scientist

    Hi,

     

    can you link the 4.3 docu? I never encountered such an operator.. But i started using RM in some 5.X versions.

     

    ~Martin

    - Head of Data Science Services at RapidMiner -
    Dortmund, Germany
  • IngoRMIngoRM Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, Community Manager, RMResearcher, Member, University Professor Posts: 1,751  RM Founder

    Hi,

     

    That is a looooong time ago :smileyhappy:

     

    I think this operator might have been renamed into the operator "Shuffle" although I am not 100% sure.  "Shuffle" changes the order of all rows though, not just the values for a single attribute.  In order to achieve this, you would need to separate that attribute first, only shuffle it, and then join it to the original data again.

     

    Cheers,

    Ingo

  • mschmitzmschmitz Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,077  RM Data Scientist

    Hey,

     

    i've looked at the source code, the shuffle operator is indeed linked to the class PermutationOperator.

     

    ~Martin

    - Head of Data Science Services at RapidMiner -
    Dortmund, Germany
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