dist_cen {distanceHD}R Documentation

Centroid distance between two groups

Description

Calculate the Centroid (Euclidean) distance between two groups in a high-dimensional space (d > n), with support for a single-member cluster. It also works in low-dimensional settings.

Usage

dist_cen(x, group)

Arguments

x

x is n by d matrix

group

group is a binary group label with the length of n1 and n2

Value

A numeric value of distance

Author(s)

Jung Ae Lee <jungae.lee@umassmed.edu>

Examples

data(leukemia)
group = leukemia$Y      # 38 patients status with a value of 1 or 2
x = leukemia$X          # 38 by 3051 genes

# apply the function
dist_cen(x, group)  # 25.4

[Package distanceHD version 1.2 Index]