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Jitter longitude and latitude variables

Source: R/create_variables.R
jitter_lonlat.Rd

Jitter longitude and latitude variables

Usage

jitter_lonlat(dat, project, lon, lat, factor = 1, amount = NULL)

Arguments

dat

Main data frame over which to apply function. Table in FishSET database should contain the string `MainDataTable`.

project

Project name.

lon

String, variable name containing longitude.

lat

String, variable name containing latitude.

factor

Numeric, see jitter for details.

amount

Numeric, see jitter for details. Default (NULL): factor * d/5 where d is about the smallest difference between x values.

Details

This is one of the FishSET confidentiality functions. It "jitters" longitude and latitude using the base R function jitter.

Examples

if (FALSE) {
jitter_lonlat(pollockMainDataTable, "pollock",
              lon = "LonLat_START_LON", lat = "LonLat_START_LAT")
}