<?xml version="1.0" encoding="UTF-8"?>
<oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:title>Species Sensitivity Distributions</dc:title>
  <dc:title>R package ssdtools version 2.6.0</dc:title>
  <dc:description>Species sensitivity distributions are cumulative probability
    distributions which are fitted to toxicity concentrations for
    different species as described by Posthuma et al.(2001)
    &lt;isbn:9781566705783&gt;. The ssdtools package uses Maximum Likelihood to
    fit distributions such as the gamma, log-logistic, log-normal and
    log-normal log-normal mixture. Multiple distributions can be averaged
    using Akaike Information Criteria.  Confidence intervals on hazard
    concentrations and proportions are produced by bootstrapping.</dc:description>
  <dc:type>Software</dc:type>
  <dc:relation>Depends: R (&gt;= 4.1)</dc:relation>
  <dc:relation>Imports: abind, chk, furrr, generics, ggplot2, ggtext, glue, goftest,
graphics, grid, lifecycle, parallel, plyr, purrr, Rcpp, readr,
rlang, scales, ssddata, stats, stringr, tibble, TMB,
universals, utils</dc:relation>
  <dc:relation>LinkingTo: Rcpp, RcppEigen, TMB</dc:relation>
  <dc:relation>Suggests: actuar, covr, dplyr, EnvStats, extraDistr, fitdistrplus,
grDevices, knitr, latex2exp, magrittr, mle.tools, patchwork,
reshape2, rmarkdown, testthat (&gt;= 3.0.0), tidyr, tidyselect,
tinytex, VGAM, withr</dc:relation>
  <dc:creator>Joe Thorley &lt;joe@poissonconsulting.ca&gt;</dc:creator>
  <dc:publisher>Comprehensive R Archive Network (CRAN)</dc:publisher>
  <dc:contributor>Joe Thorley [aut, cre] (ORCID: &lt;https://orcid.org/0000-0002-7683-4592&gt;),
  Rebecca Fisher [aut],
  David Fox [aut],
  Carl Schwarz [aut],
  Angeline Tillmanns [ctb],
  Seb Dalgarno [ctb] (ORCID: &lt;https://orcid.org/0000-0002-3658-4517&gt;),
  Kathleen McTavish [ctb],
  Heather Thompson [ctb],
  Doug Spry [ctb],
  Rick van Dam [ctb],
  Graham Batley [ctb],
  Ali Azizishirazi [ctb],
  Nadine Hussein [ctb] (ORCID: &lt;https://orcid.org/0000-0003-4470-8361&gt;),
  Sarah Lyons [ctb] (ORCID: &lt;https://orcid.org/0000-0002-6745-6796&gt;),
  Duncan Kennedy [ctb] (ORCID: &lt;https://orcid.org/0009-0001-4880-5751&gt;),
  Stephanie Hazlitt [ctb],
  Hadley Wickham [ctb],
  Sergio Ibarra Espinosa [ctb],
  Andy Teucher [ctb],
  Emilie Doussantousse [ctb],
  Nan-Hung Hsieh [ctb],
  Florencia D'Andrea [ctb],
  Eduard Szöcs [ctb] (ORCID: &lt;https://orcid.org/0000-0001-5376-1194&gt;),
  Province of British Columbia [fnd, cph],
  Environment and Climate Change Canada [fnd, cph],
  Australian Government Department of Climate Change, Energy, the
    Environment and Water [fnd, cph]</dc:contributor>
  <dc:rights>Apache License (== 2.0)</dc:rights>
  <dc:rights>file LICENSE (https://CRAN.R-project.org/package=ssdtools/LICENSE)</dc:rights>
  <dc:date>2026-03-05</dc:date>
  <dc:format>application/tgz</dc:format>
  <dc:identifier>https://CRAN.R-project.org/package=ssdtools</dc:identifier>
  <dc:identifier>doi:10.32614/CRAN.package.ssdtools</dc:identifier>
  <dc:language>en-US</dc:language>
</oai_dc:dc>