add.neighbor {R2BayesX} | R Documentation |
Adds a neighborhhod relationship between two given regions to a map object in graph format.
add.neighbor(map, region1, region2)
map |
map object in graph format that should be modified. |
region1, region2 |
character, names of the regions that should be connected as neighbors. |
Returns an adjacency matrix that represents the neighborhood structure of map
plus the new
neighborhood relation in graph format.
Felix Heinzl, Thomas Kneib.
get.neighbor
, delete.neighbor
, read.gra
,
write.gra
, bnd2gra
.
## read the graph file file <- file.path(find.package("R2BayesX"), "examples", "Germany.gra") germany <- read.gra(file) ## add some neighbors get.neighbor(germany, c("1001", "7339")) germany <- add.neighbor(germany, "7339", "1001") get.neighbor(germany, c("1001", "7339"))