manhattan {gtexture}

Manhattan Distance Function Factory

Description

Returns a function that checks whether the Manhattan distance between two numeric vectors is less than or equal to a given threshold.

Usage

manhattan(dist = 1)

Arguments

dist

threshold above which the function will return FALSE

Value

function that checks if Manhattan distance between two vectors exceeds dist

Examples

# test data: Manhattan distance equals 2
x <- rep(0, 5)
y <- c(0, 1, 0, 0, 1)

# should return TRUE when checking Manhattan distance <= 3
dist_3 <- manhattan(3)
dist_3(x, y)

# should return FALSE when checking Manhattan distance <= 1
dist_1 <- manhattan(1)
dist_1(x, y)