A function to plot N at age
plot_NAtAge(SS, MAS, pdf_on = TRUE, byage = FALSE, years, ages)
the matrix of numbers at age from Stock Synthesis, where rows are ages
the matrix of numbers at age from MAS, where rows are ages
boolean, should the PDF be created? Default is TRUE
boolean, should the numbers be plotted with each plot representing an age (default to FALSE) or a year?
the vector of years in the model
the vector of ages in the model