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Installing OpenMx

What computers run OpenMx?

You can run recent versions of OpenMx on computers using Windows, MacOS, and most varieties of Linux/GNU.

What do I need to do first?

In order to install the most recent version of OpenMx, you will need a recent version of R.

If you need to download R, it can be found at CRAN.

How do I install OpenMx?

The easiest way to install OpenMx is from CRAN: Just open up an R session and type:


You may need to restart R before you can load the freshly installed OpenMx package.

Advanced users: If you want to install the version of OpenMx which uses the NPSOL optimizer,
copy the following line into the R command line and press return.



Now you should be ready to take a look at the Tutorial User Guide.

Also, take look at other packages such as metaSEM and umx and others that extend the functionality of OpenMx.

Developers. If you are interested in building OpenMx from source, instructions are here.