[pomp-announce] pomp version 0.39-1 released

[Aaron A. King]

Dear pomp users,

I've just submitted version pomp 0.39-1 to CRAN.  Source code and binaries 
should become available on the mirrors over the next few days.  This release 
includes a major improvement to the basic 'pomp' class.  Because it is so 
frequently convenient to transform model parameters prior to estimating them, 
facilities are now provided to make this easier. Two new optional arguments to 
the 'pomp' function allow the user to specify an arbitrary parameter 
transformation function (and its inverse), which will then be stored in the 
resulting pomp-class object.  These functions are then applied when the 'coef' 
or 'coef<-' methods for getting or setting model parameters are used.  Each of 
these functions now have a new optional argument 'transform'.  When 
'transform=TRUE', the user-specified parameter transformations are applied as 
appropriate.  By default, 'transform=FALSE' in these functions so that the 
default behavior is unchanged.  See the help pages (pomp?coef), the new 
section on "transforming parameters" in the "introduction to pomp" vignette 
(vignette("intro_to_pomp")), and the package NEWS file for more information.

All the best,

Aaron

-- 
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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