🎉Community Raffle - Win $25

An exclusive raffle opportunity for active members like you! Complete your profile, answer questions and get your first accepted badge to enter the raffle.
Join and Win

numeric and polynomial variables

User: "HikeFan"
HikeFan
New Altair Community Member
Updated by Jocelyn

If a variable is already coded as a dummy, then, after importing the dataset to the design interface, should I set the type as integer or binominal (and then transform from nominal to numeric)? 

Also, if the variable is ordinal should it be set as polynominal or integer? What if it is ordinal but the values are not 'complete' e.g. 1,2,3,4,8?

 

Find more posts tagged with

AI Studio
Getting Started
Sort by:
1 - 1 of 11
    User: "SGolbert"
    SGolbert
    New Altair Community Member

    If the variable has been dummy coded, then the type is numeric, by definition of dummy coding.

     

    For ordinal variables it doesn't matter if there are "holes". As far as I know they are not explicitely supported by RapidMiner, but the closest thing is a polynominal type: The actual values "1", "2", "100" don't matter. In case that you use it for regression problems, then you will probably have to dummy code it.

     

    Best,

    Sebastian

Quick Links