Scan Candidate Weather Windows Relative to a Reference Time

For each candidate window, subsets the weather series relative to a reference time and computes summary features. The reference can be an assessment date, planting date, flowering date, inoculation date, or any other biologically meaningful timestamp.

Usage

scan_windows(
  weather,
  reference_time,
  windows,
  weather_cols = NULL,
  time_col = "time",
  temp_col = "temp",
  rh_col = "rh",
  rain_col = "rain",
  leaf_wetness_col = "leaf_wetness",
  unit = c("days", "hours"),
  statistics = list(
    temp = c("mean", "min", "max"),
    rh = "mean",
    rain = "sum",
    leaf_wetness = "sum"
  )
)

Arguments

weather: A weather data frame.
reference_time: Reference time used to place the candidate windows.
windows: A data frame created by make_windows.
weather_cols: Character vector of weather columns to summarize. If named, the names are used in the output feature names.
time_col: Name of the weather timestamp column.
temp_col: Name of the temperature column.
rh_col: Name of the relative humidity column.
rain_col: Name of the rainfall column.
leaf_wetness_col: Name of the leaf wetness column.
unit: Time unit for relative-time windows. One of "days" or "hours".
statistics: Summary statistics passed to summarise_weather_window().

Value

A data frame with one row per candidate window and summary metrics.