ssdtools: Species Sensitivity Distributions

Species sensitivity distributions are cumulative probability distributions which are fitted to toxicity concentrations for multiple species. The ssdtools package uses Maximum Likelihood to fit log-normal, log-logistic, log-Gumbel, Gompertz, gamma or Weibull distributions. Multiple distributions can be averaged using Information Criteria. Confidence intervals can be calculated for the fitted cumulative distribution function or specific hazard concentrations (percentiles). Confidence intervals are currently produced by bootstrapping.

Version: 0.0.3
Depends: R (≥ 3.4.0)
Imports: checkr, fitdistrplus, FAdist, ggplot2, graphics, grid, scales, stats, VGAM
Suggests: covr, knitr, rmarkdown, testthat, tibble, tidyr, readr, purrr, dplyr
Published: 2018-11-25
Author: Joe Thorley ORCID iD [aut, cre, ctr], Carl Schwarz [aut, ctr], Ali Azizishirazi [ctb], Angeline Tillmanns [ctb], Stephanie Hazlitt [ctb], Kathleen McTavish [ctb], Emilie Doussantousse [ctb], Heather Thompson [ctb], Andy Teucher [ctb], Province of British Columbia [cph]
Maintainer: Joe Thorley <joe at>
License: Apache License (== 2.0) | file LICENSE
NeedsCompilation: no
Language: en-US
Materials: README NEWS
CRAN checks: ssdtools results


Reference manual: ssdtools.pdf
Vignettes: ssdtools User Manual
Package source: ssdtools_0.0.3.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X binaries: r-release: ssdtools_0.0.3.tgz, r-oldrel: ssdtools_0.0.3.tgz
Old sources: ssdtools archive


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