Simulating Data to Study Performance of Clustering Algorithms

The utility of this package is in simulating mixtures of Gaussian distributions with different levels of overlap between mixture components. Pairwise overlap, defined as a sum of two misclassification probabilities, measures the degree of interaction between components and can be readily employed to control the clustering complexity of datasets simulated from mixtures. These datasets can then be used for systematic performance investigation of clustering and finite mixture modeling algorithms. Among other capabilities of 'MixSim', there are computing the exact overlap for Gaussian mixtures, simulating Gaussian and non-Gaussian data, simulating outliers and noise variables, calculating various measures of agreement between two partitionings, and constructing parallel distribution plots for the graphical display of finite mixture models.


2014-11-17: Ver. 1.1-1

  • Gen. overlap of Maitra added.

2013-12-07: Ver. 1.0-9

  • Fixed .Last.lib problem.

2012-08-22: Ver. 1.0-8

  • Info on JSS paper added.

2012-08-22: Ver. 1.0-6

  • Several minor corrections.

2012-08-12: Ver. 1.0-5

  • Several minor changes.

2012-02-26: Ver. 1.0-4

  • Demo files are updated.

2012-02-18: Ver. 1.0-3

  • Add class for MixSim and fix manuals.

2010-11-21: Ver. 1.0-2

  • Fixed

2010-11-21: Ver. 1.0-1

  • Homogeneous clusters, outliers, noise, Box-Cox transformation.

2009-06-10: Ver. 0.1-4

  • Fixed MAC version.

2009-04-24: Ver. 0.1-3

  • Fixed LAPACK library.

2009-04-23: Ver. 0.1-2

  • Built for Windows version.

2009-04-15: Ver. 0.1-1

  • C functions added.

Reference manual

It appears you don't have a PDF plugin for this browser. You can click here to download the reference manual.


1.1-4 by Wei-Chen Chen, 6 months ago

Browse source code at

Authors: Volodymyr Melnykov [aut] , Wei-Chen Chen [aut, cre] , Ranjan Maitra [aut] , Robert Davies [ctb] (quadratic form probabilities) , Stephen Moshier [ctb] (eigenvalue calculations) , Rouben Rostamian [ctb] (memory allocation)

Documentation:   PDF Manual  

Task views: Cluster Analysis & Finite Mixture Models

GPL (>= 2) license

Depends on MASS

Enhances mclust, cluster

Imported by MixfMRI, SAGMM.

Enhanced by pmclust.

See at CRAN