A more stable beta release of the OpenMx 1.1 series is available for download. Use the alternate installation command in an R terminal added omxSelectRowsAndCols, omxSelectRows and omxSelectCols documentation
fixed model flattening to keep track of confidence intervals in submodels
fixed a bug in omxParallelCI() introduced by previous change
added verifyCorrelationMatrix to mxData. See https://openmx.ssri.psu.edu/issue/2011/06/error-checking-correlation-matrices
added error checking for dimnames on MxMatrix and MxAlgebra objects
reformatted comments and heading style for all demos
fixed segmentation fault on backend error condition
turn off jiggling of free parameters with starting values of 0.0 when useOptimizer=FALSE
allow non-RAM objective functions in RAM model
change model type names to 'default' and 'RAM'
no longer explicitly transforming RAM + raw data models into FIML models
fixed bug in MxMatrix indexing operator
added argument 'threshnames' to mxFIMLObjective()
eliminated "initialize" method for MxMatrix objects
added "omxCreateMatrix" method for MxMatrix objects
renaming majority of omx* functions to imx* functions. See https://openmx.ssri.psu.edu/thread/761
added error checking to mxOption() function
added "Optimality tolerance" to mxOption() selection
added 'lbound' and 'ubound' columns to summary() output of free parameters
added asterisks to the 'lbound' and 'ubound' columns when feasibility tolerance is met
added "omxNot" function to the set of available mxAlgebra() function
added "omxSelectRows", "omxSelectCols", and "omxSelectRowsAndCols" as mxAlgebra operators()
updated interface of mxRowObjective
in ML objective: expected covariance matrix and observed covariance matrix must have identical dimnames
in RAM and ML objectives: the observed means vector must have column names
added "mean" function to the set of available mxAlgebra() functions
added slots "expCov" and "expMean" to the MxRAMObjective function
added useOptimizer option to mxRun.
added error checking in frontend and backend for non-positive-definite observed covariance matrices
added "omxGreaterThan", "omxLessThan", "omxApproxEquals", "omxAnd", and "omxOr" operators to the set of mxAlgebra() operators
error checking for model[[1]] or model[[TRUE]]
error checking in the front-end whether more than 20 ordinal columns are present in a data set
improved performance in the front-end in mxModel() for adding paths to RAM models
print name of algebra when operator has too few or too many arguments
added mxErrorPool() function and R documentation.
added Apache license information to all R documentation files.
new implementation of mxEval().
new argument 'defvar.row' to mxEval(). See ?mxEval.
handling definition variables for (I - A) ^ - 1 speedup
handling square bracket labels for (I - A) ^ - 1 speedup
added argument 'free' to omxGetParameters. See ?omxGetParameters.
added argument 'strict' to omxSetParameters. See ?omxSetParameters.
eliminated warnings for confidence interval optimization codes
added "..." argument to mxRObjectiveFunction()
added 'excludeself' argument to mxPath() function
fix memory leak in RAM objective function
removed dependency to MBESS library in R documentation
added more descriptive error message when thresholds are not sorted
incorporated NaN unsafe matrix-matrix multiplication (dgemm) from R <= 2.11.1
incorporated NaN unsafe matrix-vector multiplication (dgemv) from R <= 2.11.1
return NA in mxVersion() if "OpenMx" cannot be found
fix infinite loop in objective function transformations
added initialization to load OpenMx on swift workers
implemented omxParallelCI() to calculate confidence intervals in parallel
only calculating CIs for upper triangle of symmetric matrices
cleanup appearance of transient MxMatrix objects in error messages
fix bug with very large number of omxUntitledName() objects
added optional argument CPUS=n to "make test" target
change snowfall interface to use sfClusterApplyLB()
storing raw data in row-major order, and copying contiguous data rows
fix bug in mxModel() when using remove = TRUE
source("https://openmx.ssri.psu.edu/getNewOpenMx.R").
For more information on OpenMx 1.1 please see our original announcement.
Below is the full change log since the OpenMx 1.0.0 release. We have made numerous small improvements and bug fixes.