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Includes self in neighbor list

Source: R/utils-self.R
include_self.Rd

Includes observed region in list of own neighbors. For some neighbor lists, it is important to include the ith observation (or self) in the neighbors list, particularly for kernel weights.

Usage

include_self(nb)

remove_self(nb)

Arguments

nb

an object of class nb e.g. made by st_contiguity()

Value

An object of class nb.

Examples

nb <- st_contiguity(guerry)
self_included <- include_self(nb)
self_included
#> Neighbour list object:
#> Number of regions: 85 
#> Number of nonzero links: 505 
#> Percentage nonzero weights: 6.989619 
#> Average number of links: 5.941176 
remove_self(self_included)
#> Neighbour list object:
#> Number of regions: 85 
#> Number of nonzero links: 420 
#> Percentage nonzero weights: 5.813149 
#> Average number of links: 4.941176