quantiles for intervals, if desired. NULL if not desired.
...
graphical parameters.
Details
The first two plots are trace plots for diagnosing convergence. The third plot is posterior predicted vs observed, with intervals for predictions. The fourth plot is a histogram of the residuals (of the posterior mean model), with a red curve showing the assumed Normal density (using posterior mean variance). If bass was run with save.yhat = FALSE, the third and fourth plots are omitted.