create a neighbourhood network from touching regions in a shapefile, with additional capability to connect non touching areas where there may be bridges etc.

create a neighbourhood network from touching regions in a shapefile, with additional capability to connect non touching areas where there may be bridges etc.

Usage

createNeighbourNetwork(
  shape,
  idVar = "code",
  bridges = arear::ukconnections,
  queen = FALSE,
  ...
)

Arguments

shape

- a sf object, if not present will be loaded from cache

idVar

- the column containing the coded identifier of the map

bridges

- a df with the following columns: name start.lat start.long end.lat end.long defining connections between non touching shapes (e.g. bridges / ferries / etc.)

queen

- include neighbouring areas that only touch at corners, defaults to false.

...

Named arguments passed on to .cached

.nocache

an option to defeat the caching which can be set globally as options("cache.disable"=TRUE)

Value

an edge list of ids with from and to columns