The GA should use crossfold validation as the default. I propose a default n of 5. Users can choose to change the n, including to 1 or 0, which would be testing on training -- a horror -- but users should be allowed to choose it on the theory that they know what they're doing... The key thing is that this should NOT be the default.
The GA should use crossfold validation as the default. I propose a default n of 5. Users can choose to change the n, including to 1 or 0, which would be testing on training -- a horror -- but users should be allowed to choose it on the theory that they know what they're doing... The key thing is that this should NOT be the default.