Recruitment function with a specified crash period — recruits

Generate future recruitment timeseries via historical reasampling, (see `resample_recruits`) but set a specific time period of the projected recruitment to a different values. Can be used to specify a "crash" in recruitment, or a "spike" in recruitment depending on the `crash_value`.

Usage

recruits_crash(
  crash_start_year,
  crash_length,
  crash_value,
  hist_recruits,
  nyears,
  seed
)

Arguments

crash_length: number of years to have "crashed" recruitment
crash_value: recruitment during the "crash" period
hist_recruits: historical timeseries of recruitment (or deviates)
nyears: total number of years to resample
seed: random seed for reproducability
crash_start_years: projection year to start the recruitment crash