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update paper
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joethorley committed Sep 23, 2024
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2 changes: 0 additions & 2 deletions DESCRIPTION
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person("Doug", "Spry", role = "ctb"),
person("Rick", "van Dam", role = "ctb"),
person("Graham", "Batley", role = "ctb"),
person("Yulia", "Cuthbertson", role = "ctb"),
person("Tony", "Bigwood", role = "ctb"),
person("Michael", "Antenucci", role = "ctb"),
person("Ali", "Azizishirazi", role = "ctb"),
person("Nadine", "Hussein", , "[email protected]", role = "ctb",
comment = c(ORCID = "0000-0003-4470-8361")),
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2 changes: 0 additions & 2 deletions man/ssdtools-package.Rd

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6 changes: 3 additions & 3 deletions paper/paper.bib
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doi = {10.1007/978-0-387-98141-3}
}

@Manual{r,
@Manual{r,
title = {R: A Language and Environment for Statistical Computing},
author = {{R Core Team}},
organization = {R Foundation for Statistical Computing},
address = {Vienna, Austria},
year = {2018},
url = {https://www.R-project.org/}
year = {2024},
url = {https://www.R-project.org/},
}

@book{burnham_model_2002,
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12 changes: 6 additions & 6 deletions paper/paper.md
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# Summary

Species sensitivity distributions (SSDs) are cumulative probability distributions that are used to estimate Hazard Concentrations ($\text{HC}_x$) - the concentration of a chemical that affects a given $x$% of species.
$\text{HC}_5$ values, which protect 95% of species, are often used for the derivation of environmental quality criteria and ecological risk assessment for contaminated ecosystems [@posthuma_species_2001].
Species sensitivity distributions (SSDs) are cumulative probability distributions that are used to estimate Hazard Concentrations ($\text{HC}_x$) - the concentration of a chemical that is expected to affect a given $x$% of species.
$\text{HC}_5$ values, which are intended to protect 95% of species, are often used for the derivation of environmental quality criteria and ecological risk assessment for contaminated ecosystems [@posthuma_species_2001].
The Hazard Proportion ($\text{HP}_u$) is the proportion of species affected by a given concentration $x$.

`ssdtools` is an R package [@r] to fit SSDs using Maximum Likelihood [@millar_maximum_2011] and allow estimates of $\text{HC}_x$ and $\text{HP}_u$ values by model averaging [@schwarz_improving_2019] across multiple distribution [@thorley2018ssdtools].
`ssdtools` is an R package [@r] to fit SSDs using Maximum Likelihood [@millar_maximum_2011] and estimate $\text{HC}_x$ and $\text{HP}_u$ values by model averaging [@schwarz_improving_2019] across multiple distribution [@thorley2018ssdtools].
The `shinyssdtools` R package [@dalgarno_shinyssdtools_2021] provides a Graphical User Interface to `ssdtools`.

Since the publication of @thorley2018ssdtools for v0, the `ssdtools` R package has undergone two major updates.
Since the publication of @thorley2018ssdtools, the `ssdtools` R package has undergone two major updates.
The first update (v1) included the addition of four new distributions (inverse Pareto, Burr Type III and the log-normal log-normal and log-logistic log-logistic mixtures) and a switch to the R package `TMB` [@tmb] for model fitting.
The second major release (v2) includes critical updates to ensure that the $\text{HC}_x$ and $\text{HP}_u$ estimates satisfy the *inversion principle* as well as bootstrap methods to obtain confidence intervals (CIs) with appropriate coverage [@fox_methodologies_2024].
The second major release (v2) includes critical updates to ensure that the $\text{HC}_x$ and $\text{HP}_u$ estimates satisfy the *inversion principle* as well as bootstrap methods to obtain confidence intervals (CIs) with more appropriate coverage [@fox_methodologies_2024].

# Statement of need

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# Acknowledgements

We acknowledge contributions from Angeline Tillmanns, Seb Dalgarno, Kathleen McTavish, Heather Thompson, Doug Spry, Rick van Dam, Graham Batley, Yulia Cuthbertson, Tony Bigwood, Michael Antenucci and Ali Azizisharzi.
We acknowledge contributions from Angeline Tillmanns, Seb Dalgarno, Kathleen McTavish, Heather Thompson, Doug Spry, Rick van Dam, Graham Batley, Tony Bigwood, and Ali Azizisharzi.
Development of `ssdtools` was funded by the Ministry of Environment and Climate Change Strategy, British Columbia and the Department of Climate Change, Energy, the Environment and Water, Australia.

# References
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2 changes: 1 addition & 1 deletion tests/testthat/test-gof.R
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# See the License for the specific language governing permissions and
# limitations under the License.

test_that("gof", {
test_that("gof paper also", {
fits <- ssd_fit_dists(ssddata::ccme_boron)

gof_statistic <- ssd_gof(fits)
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