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 30 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 8.1.1 released April 6, 2025
This release updates the Mstat platform to J 9.6 and Qt 6.8.3. For Windows, Mstat now provides native arm64 cpu support in addition to the Intel x64 version. As for version 8.0.1, the macOS version includes universal binaries that run on both Apple M1 (and later) processors as well as Intel chips.
Other improvements in this version include methods for converting imported tables to variables and support for dark themes on Windows.
Mstat 8.0.1 on Windows ARM64 computers
The current Windows version of Mstat (8.0.1) runs well on the recently released arm64 based windows laptops and desktops. The 64-bit Intel version runs under emulation. A native, arm64 version for Windows, which will have somewhat better peformance, will be released in the near future.
Mstat 8.0.1 released February 25, 2024
This release provides a major update to the platform on which Mstat is built, to J version 9.5 and Qt 6.5.3. As a result of this upgrade, the macOS version includes universal binaries that run on both Apple M1 (and later) chips as well as Intel processors. The macOS, Windows, and Linux versions of the software are also restricted to 64-bit versions of the operating systems.
New features in this version of Mstat include the ability to import csv or tab-delimited spreadsheet files as entire tables rather than row- or column-based variables, new tests for differences between groups in dispersion or variance, and the ability to generate random numbers from the Poisson or negative binomial distributions, in addition to Normal or uniform random variates.
Mstat 7.0.1 on Apple M1 computers
Mstat 7.0.1, installs and runs well on new Apple hardware containing the M1 chip. The code for Mstat 7.0.1 was compiled for Intel 64-bit chips, and runs under Rosetta 2 translation. If this is the first time you've tried to run software using Rosetta on your computer, you will be prompted to install Rosetta (see Apple support). A universal version of Mstat that runs natively on Intel or M1 hardware will likely be available around the end of 2021.
Mstat 7.0.1 released December 4, 2020
This release provides a major update to the underpinnings of Mstat, including J901 and Qt 5.12. For macOS users, the most important change is compatibility with the increased Catalina (version 10.15) security framework, with both the installer and application notarized. New features include drag-and-drop functionality in the multisample dialog boxes, and the ability to order samples in bar charts in increasing (or decreasing) magnitude. For those obsessing over diagnostic testing in this time of pandemic, methods to compute and plot Bayesian predictive values are included in the Design menu. See the Version History tab for additional, small bug fixes.