[pomp-announce] pomp version 0.36-1 released

Aaron A. King kingaa at umich.edu
Mon Nov 29 14:52:41 CET 2010


I've just submitted version 0.36-1 of pomp to CRAN.  It should appear in the next day or so. There are several new features included with this release. The facilities for trajectory matching have been substantially improved.  In addition, the particle filtering methods have been recoded in an object-oriented style consistent with the rest of the package.  From the NEWS file:

    o  There are two new classes: 'traj.matched.pomp' and 'pfilterd.pomp' to hold the results of 'traj.match' and 'pfilter' computations, respectively.  The old classes 'mif' and 'pmcmc' now inherit from 'pfilterd.pomp' in a natural way.

    o  When 'traj.match' is called, the returned 'traj.matched.pomp' object has its 'states' slot filled with the model trajectory at the fitted parameters.

    o  More optimization methods are now provided in 'traj.match'.  These include the new algorithm "sannbox", an optionally box-constrained simulated annealing algorithm.

    o  'probe.match' is now an S4 method (like 'pfilter', 'mif', 'pmcmc', and 'traj.match') with methods for classes 'pomp', 'probed.pomp', and 'probe.matched.pomp'.

    o  There is a change to the interface to 'pfilter' in that 'save.states' results in the filling of the 'last.states' slot.  Before version 0.36-1, the 'pfilter' returned a list.  The element 'states' of that list corresponds to the slot 'last.states' in version 0.36-1.  It was necessary to make this name-change in order to avoid a conflict with the 'states' slot inherited from the 'pomp' class.


-- 
Aaron A. King, Ph.D.
Ecology & Evolutionary Biology
Mathematics
Center for the Study of Complex Systems
University of Michigan
GPG Public Key: 0x6E74F51B
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