Set up the bin structure needed for composition data.
setup_bins(bins, nsex = 1, leader = c("l", "a"))A vector of integer values, either lengths or ages. Do not repeat them if you are using a two-sex model, the function will do that for you.
A single integer of one or two specifying the number of sexes in the model.
Most users will not need to change the leader
character from the default unless you are working with age data,
then just use \code"a" rather than the default of "l".
If you have a two-sex model, i.e., nsex = 2, then the
function will take care of the naming for you, which is forced
to "f" and "m". You can change them afterwards if you
want.
This is a helper function used to create the bins before
sampling takes place, see ss3sim_base().
ex <- setup_bins(bins = 1:10, nsex = 2, leader = "a")
test <- length(ex) == 20 & all(grep("m", ex) == 11:20)
# \dontshow{
testthat::expect_true(test)
# }
ex <- setup_bins(bins = 1:5, nsex = 1)
test <- ex[4] == "l4"
# \dontshow{
testthat::expect_true(test)
# }