points_in_circle {spatialrisk} | R Documentation |
Filter observations within circle
Description
Filter all observations in a data.frame that fall within a circle of a specified radius drawn around a given latitude and longitude point.
Usage
points_in_circle(
data,
lon_center,
lat_center,
lon = lon,
lat = lat,
radius = 200
)
Arguments
data |
data.frame with at least columns for longitude and latitude. |
lon_center |
numeric. Representing the longitude of the circle's center. |
lat_center |
numeric. Representing the latitude of the circle's center. |
lon |
column name in |
lat |
column name in |
radius |
radius of the circle in meters (default is 200m). |
Value
A subset of the input data.frame containing only the observations that fall within the specified circle.
Author(s)
Martin Haringa
Examples
points_in_circle(Groningen, lon_center = 6.571561, lat_center = 53.21326,
radius = 60)
[Package spatialrisk version 0.7.2 Index]