Select first n attributes from example set

qwertz2qwertz2 Member Posts: 49 Guru
edited November 2018 in Help

 

Dear all,

 

Is there an efficient way to select first n attributes from an example set? In my process I have reordered the attributes in ascending way. Now I want to proceed with just the first 5 attributes.

 

I was thinking of several combinations of "select attributes", "work ok subset", "branch", "loop attributes" but none of them worked.

 

Looking forward to any comments!

 

 

Best regards

Sachs

Best Answer

  • qwertz2qwertz2 Member Posts: 49 Guru
    Solution Accepted

     

    Wonder why I haven't seen this operator before but "remove attribute range" is the operator that solves my problem! It can be combined with "extract macro" to count the number of attributes first.

    MartinLiebig

Answers

  • MartinLiebigMartinLiebig Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,453 RM Data Scientist

    Hi,

     

    i would go for: Filter Examples (remove all), Transpose, Filter Examples Range (Select the atts you want), Transpose, Data to Weights. The result is a weight vector you can apply with Select by Weights to your original data set.

     

    ~Martin

    - Sr. Director Data Solutions, Altair RapidMiner -
    Dortmund, Germany
  • qwertz2qwertz2 Member Posts: 49 Guru

     

    Hi Martin,

     

    Thanks for your help. That's indeed a good approach that could work but unfortunately not in my case. My example set has many many many attributes and just a few examples. Once I transpose the example set I exceed my license of 10.000 examples as there are even more attributes...

     

    Best regards

    Sachs

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