We are pleased to announce that the first beta of OpenMx version 2.0 is now publicly available! Interested users can download and install this new version by copy-pasting
source('http://openmx.psyc.virginia.edu/getOpenMxBeta.R') into the R command line and pressing 'Return'. The OpenMx User Guide for the beta is attached to this announcement.
This initial beta release has a number of exciting new features, which include the following:
mxThreshold(), a new function which enables a smoother interface for setting up analyses of ordinal data.
mxFitFunctionMultigroup(), a new function which enables a smoother interface for setting up multi-group analyses.
mxComputesequences, which can tell the program what to calculate and how to do so when running an
mxModelobjects. You no longer have to keep track of when to use which; just always use
NOTE: Concerning the last bullet point, users should definitely get into the habit of ALWAYS using
$ instead of
@. For example,
myModelRun@output$estimate would now be
myModelRun$output$estimate. We CANNOT guarantee that every usage of the
@ accessor that worked with versions 1.3/1.4 will continue to work in 2.0.
Users are advised that this initial beta release of OpenMx 2.0 also has a few known issues:
mxOption()function can be used to switch to using NPSOL if necessary.
We are eager to receive user feedback about this beta of OpenMx 2.0! Please post questions, comments, and issues to the OpenMx Forums.