Radial velocity semi-amplitude of planets b (black), c (blue), and d (green) as a function of the logarithm of the Bayesian evidence obtained with the inference on the radial velocity dataset alone. The higher the Bayesian evidence, the more favoured the model. The vertical dashed red line indicates the different thresholds in the difference with the logarithm of the Bayesian evidence of the best model. Models with a difference larger than 5 are strongly rejected.