Skip to contents

Tests if location reachable from nodes

Source: R/isReachable.R
isReachable.Rd

Tests if one location (actually, the closest node to it) is reachable from the set of nodes of a gData object.

Usage

isReachable(x, loc)

Arguments

x

a gData object.

loc

location, specified as a list of two components giving respectively the longitude and the latitude. Alternatively, it can be a matrix-like object with one row and two columns.

Value

a named boolean vector, with one element per node of the input gData object, and names corresponding to node names.

See also

Other connectivity_functions: areConnected(), areNeighbours(), isConnected,gData-method

Examples

# Select African populations Mandenka, Yoruba, and San
hgdp.sub <- hgdp[getData(hgdp)$Population %in%
  c("Mandenka", "Yoruba", "San")]
# Get a location that is reachable
location <- getCoords(hgdp[getData(hgdp)$Population == "BantuKenya"])
# Check these are reachable
isReachable(x = hgdp.sub, loc = location)
#>  6433 15411 13518 
#>  TRUE  TRUE  TRUE