generate.sample.h1: Two-levels hierarchical cluster generator.

In clusterv: Assessment of Cluster Stability by Randomized Maps

Two-levels hierarchical cluster generator.

Description

A 2-dimensional two-level hierarchical cluster structure is generated. At a first level 3 distinct clusters at the vertices of an equilater triangle are generated. At a second level two other clusters at the left and right of the three "primary" clusters are generated.

Usage

generate.sample.h1(n = 20, l = 5, Delta.h = 1, sd = 0.1, with.I.level.examples = FALSE)

Arguments

n	number of examples for each cluster
l	half length of the edge of the equilater triangle
Delta.h	half of the "abscissa" distance between each pair of clusters inside the three major clusters
sd	standard deviation
with.I.level.examples	if TRUE data centered at the vertices of the triangle are generated, otherwise only the secondary clusters are generated.

Value

a matrix with dim rows (variables) and n*6 columns (examples)

Author(s)

Giorgio Valentini [e-mail]

Examples

generate.sample.h1()
# Generation of a data set with 120 2-dimensional examples
# data have a two-level hierarchical structure with respectively 3 and 6 clusters. 
generate.sample.h1(n = 20, l = 5, Delta.h = 1, sd = 0.1, with.I.level.examples = TRUE)

clusterv documentation built on June 8, 2025, 10:21 a.m.