Accuracy metric values are missing in knn

General
1

Hello,

I run knn model in R using the following model :slight_smile:
model.knn<-train(CRC, CRC$Detection,

             method = "knn", 
             
             na.action = na.omit, 
             
             tuneGrid  = expand.grid(k =1:10),
             
             
             trcontrol= trainControl(method= "cv", number = 10),

)

But I got an error that all the Accuracy metric values are missing rror: Stopping
In addition: There were 50 or more warnings (use warnings() to see the first 50)

Any help is appreciated.

2

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