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# 6. Plotting tools

Plotting functions can be used to visualize the optimization process.

## 6.1. plot_convergence

`plot_convergence` plots one or several convergence traces.

## 6.2. plot_evaluations

`plot_evaluations` visualize the order in which points where sampled.

## 6.3. plot_objective

`plot_objective` creates pairwise dependence plot of the objective function.

## 6.4. plot_regret

`plot_regret` plot one or several cumulative regret traces.