ROC with PCA

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  lionelderkrikor Moderator, RapidMiner Certified Analyst, Member Posts: 1,195 Unicorn

  May 2020

  Hi @Amin_fakhar,
  
  Two items : 
  
   1. You don't need to implement Cross Validation operators inside the Compare ROC operator. The Compare ROC operator itself
  performs a k-fold cross validation to calculate the ROC curves. (just set the number of folds k in the Compare ROC parameters)
  2. To avoid the error you describe, please use the Group Models operator for PCA and kNN.
  
  Check the working process in attached file and adapt it to your own data.
  
  Hope this helps,
  
  Regards,
  
  Lionel

  PCA_kNN_Comapre_ROC.rmp 7.2K

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  Amin_fakhar Member Posts: 2 Newbie

  May 2020 edited May 2020

  Hi @lionelderkrikor ,
  Yes, great thanks, it works, thank u so much for your attention. 

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