Marginalized posterior of the N_p parameter in the Kima fit to the RV measurements of λ² For. The number of samples in each bin corresponds to the likelihood, while the ratio of the height of each bin indicates the Bayes factor of one configuration over another. Comparing the cases of N_p = 0 and N_p = 1 the Bayes factor is effectively infinite, indicating that there is at least one planet in the system. In contrast, the ratio between N_p = 2 and N_p = 1 is low, with a Bayes factor of 1.67, suggesting that there is little evidence to support a two-planet configuration.