(calibration_abc_algo_properties)= # Defining the `TRejectionABC` properties Once the `TRejectionABC` instance is created along with its associated `TDistanceLikelihoodFunction`, a few additional methods can be used to fine-tune the algorithm parameters. These methods are optional, since each property has a predefined default value. The available options are described in the following sub-sections. ```{toctree} algo_properties/percentile algo_properties/noise_deterministic ```