Flag Occurrences those are in wrong ocean basins and are inland

Usage

ec_flag_non_region(
  direction,
  ocean,
  buffer = 50000,
  data,
  latitude = "decimalLatitude",
  longitude = "decimalLongitude"
)

Arguments

direction,: values as "east" or "west". These values help to filter the shape files for east or west of select ocean (e.g. pacific) for both north and south hemisphere.
ocean,: values such as "pacific" or "atlantic"
buffer,: Its a certain buffer distance to consider if a data point is inland. Beyond this distance data points consider as bad data points. e.g. buffer <- 25000
data,: Data table which has latitude and longitude information
latitude: default set to "decimalLatitude"
longitude: default set to "decimalLongitude"

Value

A new column with flagged values, 1 means bad records 0 means good record. Column name: flag_non_region

Examples

if (FALSE) { # \dontrun{
direction <- "east"
buffer <- 25000
ocean <- "pacific"
data <- data.frame(
  species = "A",
  decimalLongitude = c(-120, -78, -110, -60, -75, -130, -10, 5),
  decimalLatitude = c(20, 34, 30, 10, 40, 25, 15, 35)
)
data$flag_non_region <- ec_flag_non_region(
  direction,
  ocean,
  buffer = 50000,
  data
)
} # }