Select a random observation from the model frame of a merMod
randomObs(merMod, varList, seed = NULL)an object of class merMod
optional, a named list of conditions to subset the data on
numeric, optional argument to set seed for simulations
a data frame with a single row for a random observation, but with full factor levels. See details for more.
Each factor variable in the data frame has all factor levels from the full model.frame stored so that the new data is compatible with predict.merMod