pomp version 1.14 is now available on CRAN and is coming soon to a mirror near you.
This release fixes a bug in gillespie.sim and removes the kleap.sim plug-in.
A new feature: the new argument hmax to gillespie.sim allows the user to specify the maximum step size that will be taken before covariates are evaluated.
The K-leap method has been removed because its accuracy on test problems is low and it is difficult to make it compatible with the pomp paradigm. In particular, it does not readily accomodate time-varying covariates in a sensible way, nor does it lend itself to simulations at pre-specified times.
See the package NEWS for more details.
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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. |