neighbours {stepR}

Neighbouring integers

Description

Find integers within some radius of the given ones.

Usage

neighbours(k, x = 1:max(k), r = 0)

Arguments

k

integers within whose neighbourhood to look

x

allowed integers

r

radius within which to look

Value

Returns those integers in x which are at most r from some integer in k, i.e. the intersection of x with the union of the balls of radius r centred at the values of k. The return values are unique and sorted.

See Also

is.element, match, findInterval, stepcand

Examples

neighbours(c(10, 0, 5), r = 1)
neighbours(c(10, 0, 5), 0:15, r = 1)