Mstat Software

Mstat was developed to help students analyze their data using nonparametric statistical methods. This program grew out of a graduate course, "Statistical Problems in Genetics and Molecular Biology," taught by the Department of Oncology at the University of Wisconsin-Madison over the last 20 years.

This site will have the latest version of the Mstat software package for Windows, Macintosh OSX, and Linux, available from the Download link above. Help for using Mstat is also available.

As in the past, the help files include a copy of the notes for the "Statistical Problems …" course mentioned above. These course notes have been made into a book. Both paperback and ebook versions are available, as detailed on the Help page.

Mstat 5.5.4 released February, 2012

A bug resulting in improper closure of the About dialog on OSX and Linux was fixed.

Mstat 5.5.3 released February, 2012

An error when installing on some Windows XP systems was fixed. A new Windows installer is available on the Download page. Windows 7, OSX, and Linux installations are not affected, but you should run Check for updates from the Help menu.

Mstat 5.5.2 released January, 2012

Minor fixes (see Version history). Use Help > Check for updates from the menu to install the new version.

Mstat 5.5.1 released January, 2012

Two new functions have been added for this release. Barnard's exact test provides a more powerful alternative to Fisher's exact test for analysis of 2×2 tables when either the row or column totals are fixed by design. This test was implemented as a plug-in in version 5.4. The Pairwise test menu choice provides a convenient shortcut to performing multiple two-sample tests, including the Wilcoxon rank sum test or the Spearman or Kendall rank correlation test, and computing Bonferroni corrected P-values as well as FDR q-values. See the Reference section of the Help file for more details.

Other changes in this release include alterations to the help system such that the help files are opened in the default browser on all platforms, improved font defaults for Windows 7, and a handful of minor bug fixes. Click on the Version History link in the banner for further details.

Finally, I have begun a major rewrite of Mstat that will eliminate the requirement for Java on OSX and Linux. This change will also allow a client-server version of Mstat that will run on the iPad. Look for more details later this year.