De-Pivot should ignore special attributes

Telcontar120Telcontar120 Moderator, RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,635 Unicorn

The De-Pivot operator currently has no option to ignore special attributes.  This is a pain because it means if you have a nominal index or a label, then this must be left out of the attributes that are allowed to proceed through the de-pivot operation if the attributes to be de-pivoted are numerical in nature (as they often will be since de-pivot is commonly used in repeated measures type circumstances).  Otherwise the operator generates an annoying "data type mismatch" error and fails to run.  


There is a manual workaround by creating a copy of the original data, then creating a new numeric id field and substituting it for the original id field (and likewise for any label), then performing the de-pivot, and then rejoining to the original data to restore the original nominal id or label.  However this entire ordeal would be quite needless if the De-Pivot operator can simply be designed to ignore any special attributes (like many other operators) when perfoming the transpose operation.



Brian T.
Lindon Ventures 
Data Science Consulting from Certified RapidMiner Experts
2 votes

Declined · Last Updated

Closing this idea - only two votes since Sep 2016. Please re-open if this is of interest.PROD-352

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