Since we were cleaning up the saving and loading of models (see http://openmx.psyc.virginia.edu/thread/1385), on a related matter I decided to support anonymous free parameters in the utility functions
omxSetParameters(). Anonymous free parameters (free parameters that have a label of 'NA') are now identified by the string "modelname.matrixname[row,col]". This notation will be available as input to the function
omxSetParameters(), which currently rejects anonymous free parameters. The following demo will work in OpenMx 1.3.
require(OpenMx) data(demoOneFactor) manifestVars
(If the example used symmetric matrices, both the cell and the transpose of the cell would have been populated)