Dynamical Systems and Differential Equations Models

I would like to bootstrap standard error estimates for the parameters of a state space model implemented using OpenMx's SSM functionality (i.e., mxExpectationStateSpace). If I hand the example model from the mxExpectationStateSpace documentation page to the mxBootstrap function it does run without any complaints. But I consistently get standard error estimates of 0 and all percentiles land on the point estimates. Is mxBootstrap not (yet) capable of handling (models implying) dependent rows of data?

Hi all,

Was giving MxExpectationStateSpace a whirl, trying to build a model with binary manifest vars. I notice there's an option for thresholds, but it's deprecated -- is it acting as a stub i.e. it hasn't been implemented yet? Are statespace thresholds on the development roadmap?

Cheers,
Kyle

Hi All,

Sy-Miin Chow, Michael Hunter, Charles Driver, and Peter Molenaar are teaching a 1-day short course on "Continuous- and Discrete-Time Dynamic Modeling in R" as part of the Psychometric Society conference on July 9th in New York City. The course will use - among other software - ctsem which interfaces to `OpenMx`. More details are on the Education page. Below is the workshop abstract.