CoordinateCleaner (version 2.0-18)

cc_val: Identify Invalid lat/lon Coordinates

Description

Removes or flags non-numeric and not available coordinates as well as lat >90, la <-90, lon > 180 and lon < -180 are flagged.

Usage

cc_val(
  x,
  lon = "decimallongitude",
  lat = "decimallatitude",
  value = "clean",
  verbose = TRUE
)

Arguments

x

data.frame. Containing geographical coordinates and species names.

lon

character string. The column with the longitude coordinates. Default = “decimallongitude”.

lat

character string. The column with the latitude coordinates. Default = “decimallatitude”.

value

character string. Defining the output value. See value.

verbose

logical. If TRUE reports the name of the test and the number of records flagged.

Value

Depending on the ‘value’ argument, either a data.frame containing the records considered correct by the test (“clean”) or a logical vector (“flagged”), with TRUE = test passed and FALSE = test failed/potentially problematic . Default = “clean”.

Details

This test is obligatory before running any further tests of CoordinateCleaner, as additional tests only run with valid coordinates.

See Also

Other Coordinates: cc_cap(), cc_cen(), cc_coun(), cc_dupl(), cc_equ(), cc_gbif(), cc_inst(), cc_iucn(), cc_outl(), cc_sea(), cc_urb(), cc_zero()

Examples

# NOT RUN {
x <- data.frame(species = letters[1:10], 
                decimallongitude = c(runif(106, -180, 180), NA, "13W33'", "67,09", 305), 
                decimallatitude = runif(110, -90,90))
                
cc_val(x)
cc_val(x, value = "flagged")

# }