Calculate Reference Yield
calcRefYield(x, StockPars, FleetPars, pyears, Ncurr, nyears, proyears)
Integer, the simulation number
List of Stock Parameters
List of Fleet Parameters
The number of years to project forward. Equal to 'nyears' for optimizing for q.
Array with current numbers-at-age (dim=c(nsim, maxage+1, nareas))
Number of historical years
Number of projection years
A. Hordyk