Convert point or event data to PRIO-GRID

Usage

pg_from_points(
  x,
  variable,
  longitude = NULL,
  latitude = NULL,
  value = NULL,
  aggregation = c("count", "presence", "sum", "mean", "min", "max"),
  time = NULL,
  time_column = NULL,
  group_columns = NULL,
  input_crs = 4326,
  keep_empty = FALSE,
  return = c("data", "raster", "result"),
  config = priogrid::pg_current_config(),
  filename = NULL,
  overwrite = FALSE
)

Arguments

x: A data frame, sf object, SpatVector, or vector-file path.
variable: Name of the resulting variable.
longitude, latitude: Coordinate-column names for tabular input.
value: Optional source value column.
aggregation: Point aggregation rule.
time: Optional static observation date or year.
time_column: Optional observation-date column.
group_columns: Optional additional grouping columns.
input_crs: CRS of tabular coordinates.
keep_empty: Complete unobserved cells with zero when meaningful?
return: One of "data", "raster", or "result".
config: A PRIO-GRID configuration object.
filename: Optional output filename.
overwrite: Replace an existing output file?

Value

A data frame, SpatRaster, or pg_result.

Examples

events <- data.frame(
  longitude = c(10, 10.1, 20),
  latitude = c(50, 50.1, 60)
)
config <- priogrid::pg_config(nrow = 18, ncol = 36, verbose = FALSE)
pg_from_points(
  events,
  variable = "event_count",
  longitude = "longitude",
  latitude = "latitude",
  aggregation = "count",
  config = config
)
#>   pgid event_count
#> 1  488           1
#> 2  524           1
#> 3  525           1