Checkpoint
One last thing before we move on. Same surface as a write step — but the lesson doesn't complete until this passes.
Checkpoint. Diagnose which drift (if any) you're seeing. Write
classify(inputs_drifted, accuracy_dropped) that returns:
"data drift"if the inputs drifted,- else
"concept drift"if accuracy dropped (inputs look normal), - else
"stable".
Print the result for inputs stable but accuracy dropping:
concept drift