A function to extract parameter ranges for creating a grid on which to evaluate the log-posterior, used in calibrating the MCMC. This function is not intended for general use.
getparranges(priors, leneta, mult = 1.96)
an appropriate range used to calibrate the MCMC: the mean of the prior for eta plus/minus 1.96 times the standard deviation
an object of class mcmcPriors
the length of eta passed to the function
defaults to 1.96 so the grid formed will be mean plus/minus 1.96 times the standard deviation