Version 4.5 of pomp is now on CRAN and coming soon to a mirror near you. This release contains a bug fix and a few changes to the user interface. Highlights include:
- A bug in trajectory computation for deterministic, discrete-time maps has been fixed. Thanks to Felicia Magpantay for finding the bug and reporting it!
- One can now extract weighted particles from a
pfilter
computation. Before, one could always extract unweighted particles (i.e., particles post resampling). The impetus for this comes from Discussion #181. - Relatedly, the
saved.states
accessor can retrieve the output in a handy data-frame format, and not just in the (somewhat unwieldy) list format as before. - The
wquant
function for estimating quantiles given weighted samples has been changed. It now uses the Harrell-Davis estimator, which does not seem to be readily available elsewhere, but which should behave well in the primary pomp use case—computing quantiles of state distributions from weighted particle ensembles.
In addition, with this release come some small improvements to the manual.