Options that can be set for the BayesFactor package
The BayesFactor package has numerous options that can be set to globally 
change the behavior of the functions in the package. These options can be
changed using options().
BFMaxModelsInteger; maximum number of models to analyze in anovaBF or regressionBF
BFprogressIf TRUE, progress bars are on by default; if FALSE, they are disabled by default.
BFpretestIterationsInteger; if sampling is needed to compute the Bayes factor, the package attempts to choose the most efficient sampler. This option controls the number of initial test iterations.
BFapproxOptimizer"nlm" or "optim"; changes the optimization function used for the importance sampler. If one fails, try the other.
BFapproxLimitsVector of length two containing the lower and upper limits on 
on log(g) before the the posterior returns -Inf. This only affects the initial optimization step for the importance sampler.
BFfactorsMaxMaximum number of factors to try to do enumeration with in generalTestBF.
BFcheckProbabilityListCheck for duplicate models when creating BFprobability objects?