Adds the neighborhhod relationship between two given regions from a map object in graph format.
delete.neighbor(map, region1, region2)
Returns an adjacency matrix that represents the neighborhood structure of map
minus the
deleted neighborhood relation in graph format.
map object in graph format that should be modified.
names of the regions that should no longer be regarded as neighbors.
Felix Heinzl, Thomas Kneib.
get.neighbor
, add.neighbor
, read.gra
,
write.gra
, bnd2gra
.
## read the graph file
file <- file.path(find.package("R2BayesX"), "examples", "Germany.gra")
germany <- read.gra(file)
## delete some neighbors
get.neighbor(germany, c("7339"))
germany <- delete.neighbor(germany, "7339", "7141")
get.neighbor(germany, c("7339"))
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