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node regression nominal variable automatically transform in interval modalities ?

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Occasional Contributor
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node regression nominal variable automatically transform in interval modalities ?

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Hi everyone , 

 

I was wondering if the creation of dummy variable for the node regression was an automatical process.

I know it create k-1 modalities interval modalities for a nominal variable which has k modalities 

 

It's an automatic process ?

 

Thank for this confirmation


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‎05-23-2017 05:05 PM
SAS Super FREQ
Posts: 306

Re: node regression nominal variable automatically transform in interval modalities ?

Yes, the procedures used for regression in EM all internally/automatically create dummy variables for class inputs.  

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‎05-23-2017 05:05 PM
SAS Super FREQ
Posts: 306

Re: node regression nominal variable automatically transform in interval modalities ?

Yes, the procedures used for regression in EM all internally/automatically create dummy variables for class inputs.  

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