distance {GPBayes}

Compute distances for two sets of inputs

Description

This function computes distances for two sets of inputs and returns a R object.

Usage

distance(input1, input2, type = "isotropic", dtype = "Euclidean")

Arguments

input1

a matrix of inputs

input2

a matrix of inputs

type

a string indicating the form of distances with three froms supported currently: isotropic, tensor, ARD.

dtype

a string indicating distance type: Euclidean, GCD, where the latter indicates great circle distance.

Value

a R object holding distances for two sets of inputs. If type is isotropic, a matrix of distances is returned; if type is tensor or ARD, a list of distance matrices along each input dimension is returned.

a numeric vector or matrix of distances

Author(s)

Pulong Ma [e-mail]

Examples

input = seq(0,1,length=20)
d = distance(input, input, type="isotropic", dtype="Euclidean")