usedist (version 0.4.0)

dist_make: Make a distance matrix using a custom distance function

Description

Make a distance matrix using a custom distance function

Usage

dist_make(x, distance_fcn, ...)

Arguments

x

A matrix of observations, one per row

distance_fcn

A function used to compute the distance between two rows of the data matrix. The two rows will be passed as the first and second arguments to distance_fcn.

...

Additional arguments passed to distance_fcn.

Value

A dist object containing the distances between rows of the data matrix.

Details

We do not set the call or method attributes of the dist object.

Examples

# NOT RUN {
x <- matrix(sin(1:30), nrow=5)
rownames(x) <- LETTERS[1:5]
manhattan_distance <- function (v1, v2) sum(abs(v1 - v2))
dist_make(x, manhattan_distance)
# }