getVariable: Return SFDF variable at specified locations

In MazamaScience/MazamaSpatialUtils: Spatial Data Download and Utility Functions

Return SFDF variable at specified locations

Description

Uses spatial comparison to determine which polygons the locations fall into and returns the variable associated with those polygons.

If allData = TRUE, the entire dataframe is returned.

Usage

getVariable(
  longitude = NULL,
  latitude = NULL,
  dataset = NULL,
  variable = NULL,
  countryCodes = NULL,
  allData = FALSE,
  useBuffering = FALSE
)

Arguments

longitude	Vector of longitudes in decimal degrees East.
latitude	Vector of latitudes in decimal degrees North.
dataset	Name of spatial dataset to use.
variable	Name of dataframe column to be returned.
countryCodes	Vector of ISO 3166-1 alpha-2 country codes.
allData	Logical specifying whether a full dataframe should be returned.
useBuffering	Logical flag specifying the use of location buffering to find the nearest polygon if no target polygon is found.

Value

Vector or dataframe.

See Also

getSpatialData

MazamaScience/MazamaSpatialUtils documentation built on Sept. 14, 2023, 6 p.m.