optuna.visualization._utils 源代码

from typing import List

from optuna.distributions import LogUniformDistribution
from optuna.trial import FrozenTrial
from optuna.visualization import _plotly_imports

__all__ = ["is_available"]


[文档]def is_available() -> bool: """Returns whether visualization is available or not. .. note:: :mod:`~optuna.visualization` module depends on plotly version 4.0.0 or higher. If a supported version of plotly isn't installed in your environment, this function will return :obj:`False`. In such case, please execute ``$ pip install -U plotly>=4.0.0`` to install plotly. Returns: :obj:`True` if visualization is available, :obj:`False` otherwise. """ return _plotly_imports._imports.is_successful()
def _is_log_scale(trials: List[FrozenTrial], param: str) -> bool: return any( isinstance(t.distributions[param], LogUniformDistribution) for t in trials if param in t.params )