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Want to different rows in differet iteration

Himanshu_PantHimanshu_Pant Member Posts: 30 Contributor I
Lets say I have a dataset containing 10 rows. I want do iteration over these rows. In first iteration I want first row as output, in the second iteration I want first two rows as output, in third iteration first three rows and so on. How can i achieve this.

Best Answer

  • mschmitzmschmitz Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 2,982  RM Data Scientist
    edited June 8 Solution Accepted
    Hi,
    i strongly advice to use proper set operations to do the transformation. Especially if your data set is not 10, but 10000 rows+.

    But you can use Generate ID, then Group Into Collection with this id and then Loop Collection to iterate over each row. A simple Loop examples with a Filter Example Range inside would also do it, but is slower than the Group Collection approac.


    Best,
    Martin
    - Head of Data Science Services at RapidMiner -
    Dortmund, Germany
    Himanshu_Pant
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