check_pheno Check for the flight curve of a specific year. If the specific year is missing, use the nearest year available within a 5-year period to impute missing count. Function used in impute_count.

check_pheno Check for the flight curve of a specific year. If the specific year is missing, use the nearest year available within a 5-year period to impute missing count. Function used in impute_count.

Usage

check_pheno(
  sp_count_flight,
  ts_flight_curve,
  YearCheck,
  YearLimit,
  TimeUnit,
  verbose = TRUE
)

Arguments

sp_count_flight

data.table Object with the flight curve, relative abundance (NM), for a specific year.

ts_flight_curve

data.table Object with the all flight curves and relative abundance (NM) for the years available for the search as returned by flight_curve.

YearCheck

integer or vector Year to check for nearest flight curve, set internally in impute_count.

YearLimit

integer Define the span of years (+/- number of year) to look for a flight curve, if NULL no restriction is set.

TimeUnit

character The time-step for which the spline should be computed, 'd' day or 'w' week.

verbose

a logical indicating if some “progress report” should be given.

Value

A data.table with time-series of the expected relative abundance of butterfly count per day (NM) for the year or the nearest year where phenology is available.

See also

impute_count, flight_curve

Author

Reto Schmucki - retoshm@ceh.ac.uk