Subset the MSE object by particular MPs (either MP number or name), or particular simulations, or a subset of the projection years (e.g., 1: < projection years).
Sub(MSEobj, MPs=NULL, sims=NULL, years=NULL)
A MSE object.
A vector MPs names or MP numbers to subset the MSE object. Defaults to all MPs.
A vector of simulation numbers to subset the MSE object. Can also be a logical vector. Defaults to all simulations.
A numeric vector of projection years. Should start at 1 and increase by one to some value equal or less than the total number of projection years.