Lookup breeding, non-breeding, or migration season timesteps — lookup_season

Retrieve the timesteps associated with a season for the species modeled by a BirdFlow object, possibly with a buffer (in timesteps) added on. Seasons dates are from ebirdst::ebirdst_runs and are directly accessible with species_info().

Usage

lookup_season_timesteps(x, season, season_buffer = 1)

Arguments

x: a BirdFlow object
season: one of the seasons returned by species_info(), a season alias, or or "all" for all timesteps in the model
season_buffer: the number of extra timesteps to add to the beginning and end of the season.

Value

a series of integers indicating which timesteps correspond with the (possibly buffered) season.

Season names and aliases

season can be 'all', one of the the four seasons, or an alias listed below.

season	aliases
`prebreeding_migration`	`pre`, `prebreeding`, `spring`
`breeding`	`breed`, `summer`
`postbreeding_migration`	`post`, `postbreeding`, `fall`
`nonbreeding`	`non`, `winter`

Examples

bf <- BirdFlowModels::rewbla
lookup_season_timesteps(bf, "breeding", season_buffer = 0)
#>  [1] 18 19 20 21 22 23 24 25 26 27 28 29 30 31