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create index attribute

keyser84keyser84 Member Posts: 9 Contributor II
edited November 2018 in Help
I want to create an attribute which contains the index (0,1,2,3,etc.) of the instances (in the same order as in the arff file).
How do I do this in RapidMiner GUI?


  • steffensteffen Member Posts: 347  Maven

    Use the operator "IDTagging". Note that if you already have an attribute with role "id", it is going to replaced. To avoid this, change the role of id-attribute temporarily using the operator "ChangeAttributeRole".

    hope this was helpful


  • keyser84keyser84 Member Posts: 9 Contributor II
    Thank you... I just wanted to plot id/index on x-Axis and some values on y-Axis.
    I used ChangeAttributeRole operator to make it regular (otherwise it cannot be plotted).
  • haddockhaddock Member Posts: 849  Guru
    Hi there,

    If you are as lazy as I am, you can use the series plotter, then you don't even need an Id column, and you can plot the labels etc..

    Just my indolent two cents...

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