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pomp version 5.7 released

31 March 2024

pomp version 5.7 has been released to CRAN and is making its way to a mirror near you.

This is a bug-fix release. Specific changes include:

With R version 4.3.3, changes to the pbeta function introduced a bug into pomp’s wquant. This bug has been fixed.
Changes to some of the low-level C codes in pomp resolve issues identified by rchk during routine package checking at CRAN.
Some minor corrections and improvements to the documentation have been made.

pomp version 5.6 released

14 February 2024

pomp version 5.6 has been released to CRAN and is making its way to a mirror near you.

This release contains changes to the C API and some documentation corrections.

The C-level functions set_pomp_userdata and unset_pomp_userdata are no longer exported.
The C-level function bspline_eval is no longer exported. B-splines are available in C snippets via the functions bspline_basis_eval, bspline_basis_eval_deriv, periodic_bspline_basis_eval, and periodic_bspline_basis_eval_deriv. See the documentation of the pomp C API for details.

pomp version 5.5 released

2 December 2023

pomp version 5.5 has been released to CRAN and is making its way to a mirror near you.

This release contains a few feature enhancements and some changes to the internals.

Feature enhancements

There is now access to ordinary B-spline basis functions (and their derivatives) at the C snippet level. It will still almost always be preferable to construct a spline basis once and pass it to pomp functions using covar=covariate_table(...), but this functionality may occasionally be useful.
bspline_eval is now deprecated as part of the pomp C API.
Stateful objective functions (class objfun) now behave as if they are objects of class pomp. This makes it easier to work with them in plotting results, extracting information from the fitted model object, etc.

Internal changes

The C-level functions set_pomp_userdata and unset_pomp_userdata have been deprecated and will be removed in a future release. Using the latter now generates a warning that can be safely ignored.

pomp version 5.4 released

7 August 2023

pomp version 5.4 has been released to CRAN and is making its way to a mirror near you.

This release contains just one feature enhancement, but it eliminates an annoying warning message on some platforms that inadvertently slipped into the last round of revisions.

Feature enhancements

The archiving function stew now saves timing information by default.

Bug fixes

A bug resulting in a spurious warning about conversion of NULL elements that appears on some platforms has been fixed.

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This software has been made possible by support from the U.S. National Science Foundation (Grants #EF-0545276, #EF-0430120), by the “Inference for Mechanistic Models” Working Group supported by the National Center for Ecological Analysis and Synthesis (a Center funded by N.S.F. (Grant #DEB-0553768), the University of California, Santa Barbara, and the State of California), and by the RAPIDD program of the Science & Technology Directorate, Department of Homeland Security and the Fogarty International Center, U.S. National Institutes of Health.

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