[pomp-announce] pomp version 0.49-1 on CRAN

[Aaron King]

pomp version 0.49-1 is now available on CRAN and coming soon to a mirror near you.

This is a new feature release.  Some highlights are:

o    A new method, 'probe.match.objfun', constructs objective functions suitable for use in optimizers.
    
o    Inference methods based on optimization can now use the 'nloptr' package, which provides a suite of optimization algorithms.

o    The new 'abc' method implements Approximate Bayesian Computation for pomp models.

o    New inline C functions 'to_log_barycentric' and 'from_log_barycentric' are provided in 'pomp.h' to facilitate log-barycentric transformations. These have proven very useful in dealing with parameters constrained to sum to one (e.g., initial conditions of compartmental models).

o    Pomp objects now contain 'dprior' and 'rprior' slots. These are used by the Bayesian methods ('abc', 'bsmc', and 'pmcmc'). The old 'hyperparams' argument to these methods has been removed; hyperparameters are now treated just as any others.

o    By default, 'pompBuilder' now creates all files in the temporary directory.  Use the 'save=TRUE' option to get the old behavior.

o    The vignettes are no longer available via the 'vignette()' command but can be reached via the HTML documentation, in the 'doc' directory, and online at http://pomp.r-forge.r-project.org.

As always, please send bug reports, feature requests, and other questions to kingaa at umich.edu.

Happy pomping!

Aaron


-- 
Aaron A. King, Ph.D.
Ecology & Evolutionary Biology
Mathematics
Center for the Study of Complex Systems
University of Michigan
GPG Public Key: 0x15780975