Error in my RapidMiner process

a_tamara

Hi, 

I have an error in my RapidMiner process. Attached is the image of the process and rmp file. Can someone suggest what may be the reason for the error?

Thanks

ClaudioKeck

Hi, 

to use cross valiation you need to have an example set as input. Right now you have a collection of example sets. You have different options how to handle this. I would suggest to use the "Loop Collection" Operator to loop through your collection of Example sets. Inside the Loop collection Operator your "Cross Validation" Operator would sit.