What does this outcome mean?

Dear Community members,
I condcuted a metamodeling that end up with “Leave-one-out error: Inf”. Can you anyone have any idea about its interpretation?

ı appreciate your responses in advances

best wishes

Hey @Murat_Alper_BASARAN,

It is odd to have Inf as a LOO error. I guess some numerical instability is happening; either the denominator is becoming 0, or the numerator is way too large. How did you validate your metamodel? Are you using Kriging or PCE? If you still have not solved the problem, you can upload your code and the data so I can run it and have a look!

Best regards,