A sample survey calendar dataset demonstrating the structure required for
creel_design(). Contains 14 days (June 1-14, 2024) with weekday/weekend
strata, representing a two-week survey period.
Format
A data frame with 14 rows and 2 columns:
- date
Survey date (Date class), June 1-14, 2024
- day_type
Day type stratum: "weekday" or "weekend"
See also
example_counts for matching count data, creel_design() to
create a design from calendar data
Other "Example Datasets":
creel_counts_toy,
creel_interviews_toy,
example_aerial_counts,
example_aerial_glmm_counts,
example_aerial_interviews,
example_camera_counts,
example_camera_interviews,
example_camera_timestamps,
example_catch,
example_counts,
example_ice_interviews,
example_ice_sampling_frame,
example_interviews,
example_lengths,
example_sections_calendar,
example_sections_counts,
example_sections_interviews
Examples
# Load and inspect
data(example_calendar)
head(example_calendar)
#> date day_type
#> 1 2024-06-01 weekend
#> 2 2024-06-02 weekend
#> 3 2024-06-03 weekday
#> 4 2024-06-04 weekday
#> 5 2024-06-05 weekday
#> 6 2024-06-06 weekday
# Create a creel design
design <- creel_design(example_calendar, date = date, strata = day_type)
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: "none"
#> Sections: "none"