Calculate the Marginal Likelihood by summation over power posterior likelihood exptectances
sum_ML_over_PP(y_log_lik_t_equals_1_traces, temperatures)Numeric matrix of log probabilities of y at different temperatures (columns) in different iterations (rows).
Numeric vector of temperatures used to produce y_log_lik_t_equals_1_traces.
Numeric value of estimated log marginal likelihood.