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"[SOLVED] Windowing issue - index notation"

cliftonarmscliftonarms Member Posts: 32 Contributor II
edited June 2019 in Help
There is a problem with the Windowing process that effects subsequent mathematical attribute operations.

Windowing creates new attributes with the appended index format -1, -2, -3, -n i.e "att-1"

The problem comes downstream when you want to perform mathematical functions on "att-1" as Rapidminer will read this as att MINUS 1.

This can be fixed with a renaming process, but is a pain when you have 100s of attributes.


Possible solution : Better to use an underscore index format ( or make it user selectable ) in the Windowing function.
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    MariusHelfMariusHelf RapidMiner Certified Expert, Member Posts: 1,869 Unicorn
    You are right, the naming is less than optimal. We'll probably change that in a later release.
    Until then, you can use the Rename by Replacing operator; set replace_what to - and replace by to _.

    Best regards,
    Marius
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    cliftonarmscliftonarms Member Posts: 32 Contributor II
    Well spotted on the replace operator - Thanks.
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