optuna.visualization.plot_contour¶
- optuna.visualization.plot_contour(study: optuna.study.Study, params: Optional[List[str]] = None) go.Figure [source]¶
Plot the parameter relationship as contour plot in a study.
Note that, If a parameter contains missing values, a trial with missing values is not plotted.
Example
The following code snippet shows how to plot the parameter relationship as contour plot.
import optuna def objective(trial): x = trial.suggest_uniform('x', -100, 100) y = trial.suggest_categorical('y', [-1, 0, 1]) return x ** 2 + y study = optuna.create_study() study.optimize(objective, n_trials=10) optuna.visualization.plot_contour(study, params=['x', 'y'])
- Parameters
study – A
Study
object whose trials are plotted for their objective values.params – Parameter list to visualize. The default is all parameters.
- Returns
A
plotly.graph_objs.Figure
object.