Plot Spawning stock biomass and reference points for both historical and projected period
SSBrefplot(MSE, simno = 1, ystart = 1, log = F, leg = T)
An object of class 'MSE' produced by from runMSE()
Positive integer, the simulation number you wish to plot
Positive integer, the calendar year corresponding with the first historical year
Boolean, whether log SSB and reference points should be plotted
Boolean, should a legend be included in the plot?