fake_data is a synthetic dataset created for testing functions that validate
and correct country- or state-level geographic coordinates.
Controlled coordinate errors were introduced (e.g., inverted signs, swapped values, combinations of swaps and inversions) to simulate common georeferencing mistakes.
This dataset is intended for automated testing of functions such as
check_countries() and check_states().
Format
A data frame with the same structure as all_occ, containing
occurrence records with intentionally manipulated coordinates.
An additional column data_source = "fake_data" identifies these records.
Details
The coordinate errors include:
Inverted longitude: multiplying longitude by -1.
Inverted latitude: multiplying latitude by -1.
Both coordinates inverted.
Swapped coordinates: (
lon,lat) → (lat,lon).Swapped + inverted in four combinations:
swapped only,
swapped + inverted longitude,
swapped + inverted latitude,
swapped + both inverted.
Examples
data(fake_data)