assign_nn: assign_nn

In EPP: Evaluation of Proximity Programs

Description

Add nearest neighbor information by osrm route service

Usage

assign_nn(x, y, y.id = "id", k = 10, crs = 32721)

Arguments

x	sf object of source distance criteria or data.frame with "x" and "y" coordinates
y	sf object of destination distance criteria or data.frame with "x" and "y" coordinates
y.id	name of y variable for identification. Default "id"
k	numeric value for the near neighbor linear criteria, to reduce the computation for nearest neighbor by route
crs	Coordinate Reference Systems (CRS), used only if x or y are not sf . Default = "32721").

Value

x object with three new variables

nn_id	y.id of nearest neighbor
time	time by car to nearest neighbor in minutes
dist	distance by route to nearest neighbor in kilometers

Examples

pop_epp_nn <- assign_nn(x = pop_epp[1:20,], y = centers_epp)

EPP documentation built on Jan. 25, 2022, 5:07 p.m.