Randomize latitude and longitude points by zone

Usage

randomize_lonlat_zone(dat, project, spat, lon, lat, zone)

Arguments

dat: Main data frame over which to apply function. Table in FishSET database should contain the string `MainDataTable`.
project: Project name.
spat: Spatial data table containing regulatory zones. This can be a "spatial feature" or sf object.
lon: String, variable name containing longitude.
lat: String, variable name containing latitude.
zone: String, column name contain the assigned zone. Must be the same for both the spatial data table and MainDataTable.

Details

This is one of the FishSET confidentiality functions. It replaces longitude and latitude values with randomly sampled coordinates from the regulatory zone the observation occurred in.

Examples

if (FALSE) {
randomize_lonlat_zone(pollockMainDataTable, "pollock", spatdat, 
                   lon = "LonLat_START_LON", lat = "LonLat_START_LAT",
                   zone = "NMFS_AREA")
}