Abstract This package provides a parallel coordinate plot for Optuna studies. It follows Optuna’s visualization module layout: plot_parallel_coordinate returns a Plotly figure, and matplotlib.plot_parallel_coordinate returns a Matplotlib axes object.
The current implementation adds:
Conditional parameter support: if a trial does not contain a selected parameter, the line is connected to a special None tick below the valid values. Multi-objective support: objective axes are shown side by side, and trial colors are ordered by Pareto rank.