Subsetting with undefined object

[cl-roberts]

Issue

Lines 107 and 110 in plotting/plot_age_composition.R subset a vector using an undefined object nburn. This object is probably created in other scripts but should be explicitly created here

pws-herring-basa/plotting/plot_age_compositions.R

Lines 107 to 110 in caef7da

	spawn.age.comp<-spawn.age.comp[-c(1:nburn), 1:(nyr*10)]*100
	seine.age.comp<-read.csv(paste0(model.dir, "mcmc_out/SeAC.csv"), header = FALSE, dec=".")
	seine.age.comp<-seine.age.comp[-c(1:nburn), 1:(nyr*10)]*100