Question
What does the ValueError: multi_class must be in ('ovo', 'ovr') error indicate in scikit-learn?
Asked by: USER9244
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95 Answers
Answer (95)
This error arises when using scikit-learn's `MultiClassendo` or `MultiClassClassifier` and you're providing an invalid value for the `method` parameter. The accepted values for `method` are 'ovo' (One-vs-One) or 'ovr' (One-vs-Rest). The error means you need to specify either 'ovo' or 'ovr' when creating your multi-class model.