Example interview data for creel survey

Sample angler interview data demonstrating the structure required for add_interviews(). Contains 22 interviews from June 1-14, 2024, matching the example_calendar date range. Each row represents one angler interview with catch, harvest, effort, trip metadata, and extended interview attributes added in v0.5.0.

Usage

example_interviews

Format

A data frame with 22 rows and 12 columns:

date

Interview date (Date class), matching example_calendar dates

hours_fished

Numeric fishing effort in hours

catch_total

Integer total fish caught (kept + released)

catch_kept

Integer fish kept (harvest), always <= catch_total

trip_status

Character trip completion status ("complete" or "incomplete")

trip_duration

Numeric trip duration in hours

interview_id

Integer interview identifier (1 to 22), primary join key for add_catch() and future species-level data functions

angler_type

Angler party type: "bank" or "boat"

angler_method

Fishing method: "bait", "artificial", or "fly"

species_sought

Primary target species: "walleye", "bass", or "panfish"

n_anglers

Integer number of anglers in party (1 to 4)

refused

Logical flag indicating a refused interview (FALSE for all 22 accepted interviews)

Source

Simulated data for package examples

See also

example_calendar for matching calendar data, example_catch for species-level catch data, prep_interviews_trips() to standardize interview rows, add_interviews() to attach interviews to a design

Other "Example Datasets": creel_counts_toy, creel_interviews_toy, example_aerial_counts, example_aerial_glmm_counts, example_aerial_interviews, example_calendar, example_camera_counts, example_camera_interviews, example_camera_timestamps, example_catch, example_counts, example_ice_interviews, example_ice_sampling_frame, example_lengths, example_sections_calendar, example_sections_counts, example_sections_interviews

Examples

# Load and use with a creel design
data(example_calendar)
data(example_interviews)

design <- creel_design(example_calendar, date = date, strata = day_type)

interviews_ready <- prep_interviews_trips(
  example_interviews,
  date = date,
  interview_uid = interview_id,
  effort_hours = hours_fished,
  trip_status = trip_status,
  trip_duration = trip_duration,
  catch_total = catch_total,
  harvest_total = catch_kept,
  angler_type = angler_type,
  angler_method = angler_method,
  species_sought = species_sought,
  n_anglers = n_anglers,
  refused = refused
)

design <- add_interviews(design, interviews_ready,
  catch = catch_total,
  effort = effort_hours,
  harvest = harvest_total,
  trip_status = trip_status,
  trip_duration = trip_duration,
  angler_type = angler_type,
  angler_method = angler_method,
  species_sought = species_sought,
  n_anglers = n_anglers,
  refused = refused
)
#> ℹ Added 22 interviews: 17 complete (77%), 5 incomplete (23%)
print(design)
#> 
#> ── Creel Survey Design ─────────────────────────────────────────────────────────
#> Type: "instantaneous"
#> Date column: date
#> Strata: day_type
#> Calendar: 14 days (2024-06-01 to 2024-06-14)
#> day_type: 2 levels
#> Counts: "none"
#> Interviews: 22 observations
#> Type: "access"
#> Catch: catch_total
#> Effort: effort_hours
#> Harvest: harvest_total
#> Trip status: 17 complete, 5 incomplete
#> Angler type: angler_type
#> Angler method: angler_method
#> Species sought: species_sought
#> Party size: n_anglers
#> Refused: refused
#> Survey: <survey.design2> (constructed)
#> Sections: "none"