Package: cyclomort 1.0.3

cyclomort: Survival Modeling with a Periodic Hazard Function

Modeling periodic mortality (or other time-to event) processes from right-censored data. Given observations of a process with a known period (e.g. 365 days, 24 hours), functions determine the number, intensity, timing, and duration of peaks of periods of elevated hazard within a period. The underlying model is a mixed wrapped Cauchy function fitted using maximum likelihoods (details in Gurarie et al. (2020) <doi:10.1111/2041-210X.13305>). The development of these tools was motivated by the strongly seasonal mortality patterns observed in many wild animal populations. Thus, the respective periods of higher mortality can be identified as "mortality seasons".

Authors:Eliezer Gurarie [aut, cre], Thompson Peter [aut]

cyclomort_1.0.3.tar.gz
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cyclomort_1.0.3.tgz(r-4.6-emscripten)
manual.pdf |manual.html
card.svg |card.png
cyclomort/json (API)
NEWS

# Install 'cyclomort' in R:
install.packages('cyclomort', repos = c('https://eligurarie.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/eligurarie/cyclomort/issues

Datasets:
  • nwt_morts - Mortality data for Northwest territory boreal woodland caribou.
  • seasonalsex - Simulated data of seasonal mortality data for two sex groups
  • timetoeventprediction - Example fitted time to event prediction
  • wah_morts - Mortality data for Western Arctic Herd Caribou

On CRAN:

Conda:

4.60 score 2 stars 5 scripts 615 downloads 17 exports 55 dependencies

Last updated from:1a79e3de44. Checks:9 OK. Indexed: yes.

TargetResultTimeFilesSyslog
linux-devel-x86_64OK187
source / vignettesOK212
linux-release-x86_64OK161
macos-release-arm64OK109
macos-oldrel-arm64OK158
windows-develOK147
windows-releaseOK150
windows-oldrelOK159
wasm-releaseOK122

Exports:censor_cycloSurvcreate_cycloSurvDeltaToRhofactorfit_cyclomortfindDeltafindRhofit_cyclomortguess_initial_parametersimwciwcloglikeloglike_optimmwcselect_seasonssimulate_cycloSurvtrim_cycloSurvwc

Dependencies:assertthatbbmlebdsmatrixclicpp11data.tabledeSolvedplyrfarverfastGHQuadflexsurvgenericsggplot2gluegtableisobandlabelinglatticelifecyclelsodalubridatemagrittrMASSMatrixmgcvmstatemuhazmvtnormnlmenumDerivpillarpkgconfigplyrpurrrquadprogR6RColorBrewerRcppRcppArmadillorlangrstpm2S7scalesstatmodstringistringrsurvivaltibbletidyrtidyselecttimechangeutf8vctrsviridisLitewithr

Using cyclomort: A tool for estimating seasonal mortality patterns

Rendered fromcyclomort.Rmdusingknitr::rmarkdownon May 18 2026.

Last update: 2025-04-01
Started: 2019-02-22