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"[SOLVED] Windowing issue - index notation"
cliftonarms
Member Posts: 32 
Contributor II
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.
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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0
Answers
Until then, you can use the Rename by Replacing operator; set replace_what to - and replace by to _.
Best regards,
Marius