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Welcome to the world's most extensive suite of chemometric tools!

PLS_Toolbox is the world-recognized suite of essential and advanced chemometric multivariate analysis tools for use within the MATLAB computational environment.

PLS_Toolbox contains the tools required by chemical engineers, analytical chemists and other analysis-driven scientists to explore their data and build predictive models. It gets its name from the Partial Least Squares (PLS) regression method, which has become the standard calibration method in many regression applications, but the toolbox now includes so much more including a unified graphical interface and over 300 tools for use in a wide variety of technical areas. Find out more about the latest release or get a PDF brochure describing the newest version.

PLS_Toolbox tools include...

  • Data Exploration and Pattern Recognition (Principal Components Analysis, Parallel Factor Analysis, MCR, Purity, Tucker Models...)
  • Classification (SIMCA, k-nearest neighbors, PLS Discriminant Analysis, Cluster Analysis with Dendograms...)
  • Linear and Non-Linear Regression (PLS, Principal Components Regression, N-way PLS, Locally Weighted Regression...)
  • Self-modeling Curve Resolution, Pure Variable Methods (CODA_DW, Purity (compare to SIMPLSMA), CompareLCMS...)
  • Curve fitting and Distribution fitting and analysis tools
  • Instrument Standardization (Piece-wise Direct, Generalized Least Squares Preprocessing...)
  • Advanced Graphical Data Set Editing and Visualization Tools
  • Advanced Customizable Order-Specific Preprocessing (Centering, Scaling, Smoothing, Derivatizing...)
  • Missing Data Support
  • Variable Selection (Genetic algorithms, IPLS, purity-based analysis)

Plus all the cutting edge tools you've come to expect from Eigenvector Research! All with source code allowing the advanced user to view and understand the techniques - no more black-box analyses. To learn more about the wide range of PLS_Toolbox functions, you can view the topic-oriented reference manual on-line.

Command-line users may find the Function Reference-Card (get as PDF here) useful to print out and refer to while working with PLS_Toolbox.

What is new in Version 5.0? See our what's new page...

Version 5.0 of PLS_Toolbox is now Shipping

New and current users can purchase it using our on-line order form. Users with current License Maintenance Agreements get new releases for free. If you already have a PLS_Toolbox license, you can download it now.

License Maintenance Agreement

Each copy of PLS_Toolbox comes with a one-year license maintenance agreement. As long as this license maintenance agreement is in effect, you will receive all updates to the product for free. You can download updates using your Eigenvector Research user account. After the license maintenance agreement expires, you can only download product versions for which you have already been licensed. Read more about license maintenance agreements here.

Product Support

Eigenvector Research offers user support for PLS_Toolbox by e-mail at helpdesk@eigenvector.com. Questions are almost always answered within 24 hours (and usually much less). Updates and bug fixes will be available for users to download from our web site. For information on other support options, see our technical support page.

System Requirements

If you are using MATLAB 6.5, 7.x or higher (R13.1 through R2007b) you are ready to use PLS_Toolbox. PLS_Toolbox does not require other MATLAB toolboxes. Like all MATLAB toolboxes, PLS_Toolbox is platform independent. It will function on any platform on which MATLAB functions (e.g. MAC, PC, UNIX, Linux).

Not a MATLAB User?

You can either order our stand-alone product, Solo, or, for full access to all PLS_Toolbox functionality, you should purchase MATLAB. For information about MATLAB, contact The MathWorks, Inc. by phone at (508)647-7000, by fax at (508)647-7101 or by e-mail at info@mathworks.com.

Eigenvector Research, Inc., 3905 West Eaglerock Drive, Wenatchee, WA 98801
B.M. Wise, bmw@eigenvector.com, Phone: 509.662.9213, Fax: 509.662.9214
N.B. Gallagher, nealg@eigenvector.com, Phone: 509.687.1039