There are two different MCR-ALS GUI programs depending on the MATLAB version:

MCR-ALS GUI for MATLAB versions since R14

MCR-ALS GUI for MATLAB version previous to R14

A short user's guide can be found here

Software Description and Requirements

The new proposed MCR-ALS algorithm with a user-friendly interface consists of a few MATLAB (m- and their related fig-) files developed under MATLAB 6.5 (Release 13).

The main routine is called als2004 and calls auxiliary routines (als2004m, clas3way, als2004multi, closure_no and als_res) related to the characterization of the data set and to the selection of the constraints used during the optimization.

Launching of the main routine can be performed either by writing ‘als2004’ in the MATLAB command line or by clicking the MCR-ALS user-friendly interface icon in the MATLAB Start menu or in the Shortcuts bar with the ‘xml’ file provided with the toolbox.

The software is also compatible with MATLAB release versions R12.1 to R14 and does not need any toolbox apart from the MATLAB standard core program.

The software has been tested in computers under different Microsoft Windows operating systems (from 98 / 2000 / XP) with no need of any particular additional resources and, as expected, the time of analysis is dependent on the experimental data nature.

Installation instructions

MCR-ALS with Graphic User-Friendly Interface consists of a few MATLAB (m- and their related fig-) files freely downloadable from this web. These files are downloaded in *.zip format that the user has to unzip prior to its use.

The folder where these files are unzipped is not relevant, although unzipping the files of the toolbox in a "matlab\toolbox\mcr-als" folder is suggested.

For Matlab version since R14:

1) Set this folder into the MATLAB path and Save the Path. Just with this, you can work with the toolbox by calling the main function als2004 on the command line. Also an icon will appear in the MATLAB Start menu related to the MCR-ALS toolbox (if the icon doesn't appear, then go to the MATLAB Start menu >> Desktop Tools >> View Source Files)

2) Also is recommended to add a Shortcut in the MATLAB "Shortcut Toolbar". To do this just click the right mouse button on the "Shortcut Toolbar" and select "New Shortcut".Then fill in the Shortcut Editor:

1. Label : MCR-ALS
2. Callback : als2004
3. Category: Toolbar Shortcuts
4. Icon: select standard icon or browse to the original folder and select the MCR_logo

Finally, click the Save button

For Matlab versions previous to R14:

Once the files are in a local folder (i.e. matlab\toolbox\mcr-als):

1) Set this folder into the MATLAB path and Save the Path. Just with this you can work with the toolbox by calling the main function als2004 on the command line.

2) Also an icon will appear in the MATLAB Start menu related to the MCR-ALS toolbox