MultiNet

MultiNet is a data analysis package that can be used for ordinary data (in which you have a file that has one line of data for each case) and for network data (in which there are two files -- the "node" file describes the individuals and the "link" file describes the connections between individuals).

Note: check back periodically if you are interested in news about MultiNet.       ---- updated Apil 24, 2005 ----

A quick summary description of MultiNet

MultiNet quick start

MultiNet manual February, 2005

2005 Version

To obtain the lstest version of MultiNet, please write to richards@sfu.ca.

This version is different from earlier versions in several ways:

• The eigen analysis routines have been completely re-written so they can handle networks with more than 5,000 nodes. If your network is larger than that -- say, 20,000 or 50,000 -- write to us and see what we can do.
  
  
• The graphic display for spectral analysis can now also show strength of links and node attributes.
  
  
• The program can read data in comma-delimited format.
  
  
• It can use any node variable for the z-axis in the display of graph spectra
  
  
• It has improved checking for errors in the data
  
  
• It has improved, prettier, graphic displays for spectral analysis
  
  

2002 Version

MultiNet 4.0 for Windows differs from the 2000 version in several ways:

• It was written with a new compiler that is optimized for Windows.
  
  
• It has a variety of new types of analysis and display for in-depth exploration of graph spectra
  
  
• It has a graphic display for results of p* analysis that shows missed, correctly predicted, and falsely predicted links.
  
  
• All graphic displays can be resized by resizing the MultiNet window. This also resizes the images you get when you tell the program to save the graphic that's on the screen.
  
  
• The graphic display for spectral analysis can show node labels and direction of links; you can redefine the origin for rotation; you can select a region of the network by drawing a rectangle with the mouse; and more...

2000 Version

MultiNet 3.0 for Windows will be available here before the end of September, 2000. It is different from the 1999 version in several ways:

• It was written specifically to run in Windows (95, 98, NT, etc.). The screen layout looks like the layout for most Windows programs, with a menu bar across the top of the window.
  
  
• It is easier to install and run.
  
  
• It can export ASCII files that contain any new variables created by recoding, partitioning, or defining.
  
  
• The eigen analysis routines have been completely re-written so they can handle networks with up to 5,000 nodes. The previous version could only do 300.
  
  
• It does p* analysis on networks with up to 5,000 nodes. It is not a pre-processor. (You do not have to upload your results to SPSS, BMDP, SAS, or any other program.) It does the entire analysis and produces a graphic representation of the results.
  
  
• It can find components (strong or weak).
  
  
• It can prune the network -- identify the ends of tree structures and create a new link variable that allows you to analyze the network minus the trees.
  
  
• It can create a version of the network minus the self-loops -- the entries on the diagonal.
  
  
• It has several additional new features.
  
  

1999 Version

MultiNet 2.11 (1999 version, updated May 9, 1999) is no longer available. It was different from the 1997 version in four ways:

• It produces .bmp (Windows bitmap) instead of .dm (dot matrix) files for graphic displays. It will also produce .ps (PostScript) files if you request them.
  
  
• The eigen analysis routines have been modified so they can handle networks with up to 300 nodes. Previous versions could only do 90.
  
  
• The new version will run until the end of 1999. Some features of the 1998 version will not work after the end of 1998.
  
  
•  The new version is easier to install. We have added .pif files for Windows 95.
  
  

Click here to see what makes MultiNet different from other packages.

Click here to see information about the format of the data MultiNet uses.

In the works...

Go back.                                                          updated February 24, 2005