A convenience function that wraps base::expand.grid() to generate all combinations
of survey design parameters and adds a unique survey number to each row.
expand_surveys(
set_den = c(0.5, 1, 2, 5, 10)/1000,
lengths_cap = c(5, 10, 20, 50, 100, 500, 1000),
ages_cap = c(2, 5, 10, 20, 50)
)
Arguments
- set_den
A vector of set densities (sets per grid unit squared).
- lengths_cap
A vector of maximum numbers of lengths measured per set.
- ages_cap
A vector of maximum numbers of otoliths to collect per length group
per division per year.
Value
A data.frame containing all combinations of the supplied vectors, with an added
survey column identifying each combination.