Plugins give you an ever increasing range of capabilities, but allow you to choose only those that fit your needs. No more excess baggage to carry around and slow you down.

Four plugins are available. They provide 8 additional statistical analysis and visualization methods. Previous releases of ViSta included the functionality that is now available in the core engine plus the multivariate and multidimensional scaling plugins (but these plugins also provide cluster analysis and nonmetric MDS, both not previously available).

  • Log-Linear Analysis - by Pedro Valero
    (April 25th, 2001 - 789 KBytes download)

  • Multivariate Analysis by Forrest W. Young
    (April 25th, 2001 - 939 KBytes download)
    1. Multivariate Regression - Regression with multiple response variables. Includes Redundancy Analysis
    2. Cluster Analysis - Provides a wide range of aglomerative clustering techniques based on a variety of distance measures.
    3. Principal Component Analysis - Analyzes correlations or covariances computed from multivariate data.
    4. Correspondence Analysis - performs simple (not multiple) correspondence analysis of frequency data. Homals (below) performs multiple correspondence analysis.


  • Multidimensional Scaling (not yet available)
    (January 20th, 2000 - 0.98 MBytes download).
    1. Metric MDS - simple or replicated metric MDS
    2. Nonmetric MDS - simple or replicated nonmetric MDS (in development).
  • Homogeneity Analysis by Jan de Leeuw
    (April 25th, 2001 - 773 KBytes download). Jan de Leeuw's homogeneity analysis (Homals) has been interfaced with ViSta. No visualizations are available at this date.  Unless there are problems with the interface, this is a mature and reliable system.
  • MultiLevel Modeling
    (April 25th, 2001 - 767 KBytes download). Multilevel modeling, with unique visualization capabilities. This is a new module that interfaces the Terrace package with ViSta. While Terrace has been extensively used, the interface and visualizations are new. Please let us know of any problems.