def __init__()

in ax/core/objective.py [0:0]

• 27 lines of code
• 8 McCabe index (conditional complexity)

    def __init__(self, metric: Metric, minimize: Optional[bool] = None) -> None:
        """Create a new objective.

        Args:
            metric: The metric to be optimized.
            minimize: If True, minimize metric. If None, will be set based on the
                `lower_is_better` property of the metric (if that is not specified,
                will raise a DeprecationWarning).

        """
        lower_is_better = metric.lower_is_better
        if minimize is None:
            if lower_is_better is None:
                warnings.warn(
                    f"Defaulting to `minimize=False` for metric {metric.name} not "
                    + "specifying `lower_is_better` property. This is a wild guess. "
                    + "Specify either `lower_is_better` on the metric, or specify "
                    + "`minimize` explicitly. This will become an error in the future.",
                    DeprecationWarning,
                )
                minimize = False
            else:
                minimize = lower_is_better
        if lower_is_better is not None:
            if lower_is_better and not minimize:
                warnings.warn(
                    f"Attempting to maximize metric {metric.name} with property "
                    "`lower_is_better=True`."
                )
            elif not lower_is_better and minimize:
                warnings.warn(
                    f"Attempting to minimize metric {metric.name} with property "
                    "`lower_is_better=False`."
                )
        self._metric = metric
        self.minimize = not_none(minimize)