"[SOLVED] Windowing issue - index notation"
cliftonarms
New Altair Community Member
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.
Tagged:
0
Answers
-
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,
Marius0 -
Well spotted on the replace operator - Thanks.0