search for: t_next

Hello everybody, In order to predict income for different time points, I fitted a linear model with polynomial effects using BMA (bicreg(...)). It works fine, the results are consistent with what we are looking for. Now, we would like to predict income for a future time point t_next and of course draw the prediction interval around the estimated value for this point t_next. I've found the formulae for the ponctual estimation of t_next but I cannot succeed in finding the formula to compute the prediction interval based on BMA sets of models, which requires the adequate vari...