b59018aa05
- allows feval to return a list of tuples (name, error/score value) - changed behavior for multiple eval_metrics in conjunction with early_stopping: Instead of raising an error, the last passed evel_metric (or last entry in return value of feval) is used for early stopping - allows list of eval_metrics in dict-typed params - unittest for new features / behavior documentation updated - example for assigning a list to 'eval_metric' - note about early stopping on last passed eval metric - info msg for used eval metric added
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