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ssdtools

Species Sensitivity Distributions

Species sensitivity distributions are cumulative probability distributions which are fitted to toxicity concentrations for different species as described by Posthuma et al.(2001) <isbn:9781566705783>. The ssdtools package uses Maximum Likelihood to fit distributions such as the log-normal, gamma, log-logistic, log-Gumbel, Gompertz and Weibull. The user can provide custom distributions. Multiple distributions can be averaged using Information Criteria. Confidence intervals on hazard concentrations and proportions are produced by parametric bootstrapping.

Functions (50)

autoplot.fitdist

Autoplot fitdist

boron_data

CCME Species Sensitivity Data for Boron

boron_dists

fitdists for CCME Boron Data

boron_hc5

Model averaged 5 hazard concentration for CCME Boron Data

boron_lnorm

fitdist for CCME Boron Data

boron_pred

Model averaged predictions for CCME Boron Data

burrIII2

Burr Type III Two-Parameter Distribution

burrIII3

Burr Type III Three-Parameter Distribution

ccme_data

CCME Species Sensitivity Data

comma_signif

Comma and Significance Formatter

fluazinam_dists

fitdists for fitdistrplus fluazinam Data

fluazinam_lnorm

fitdist for CCME Boron Data

fluazinam_pred

Model averaged predictions for fluazinam

gamma

Gamma Distribution

geom_hcintersect

Hazard Concentration Intersection

geom_ssd

Plot Species Sensitivity Data

geom_xribbon

Ribbons Plot

gompertz

Gompertz Distribution

is.fitdist

Is fitdist

is.fitdistcens

Is censored fitdist

is.fitdists

Is fitdists

is.fitdistscens

Is censored fitdists

lgumbel

Log-Gumbel Distribution

llogis

Log-Logistic Distribution

lnorm

Log-Normal Distribution

nobs.fitdist

Number of Observations

nobs.fitdistcens

Number of Observations

npars

Get the Number of Parameters

params

Parameter Descriptions for ssdtools Functions

pareto

Pareto Distribution

predict.fitdist

Predict fitdist

predict.fitdistcens

Predict censored fitdist

predict.fitdists

Predict fitdists

predict.fitdistscens

Predict censored fitdists

ssd_ecd

Empirical Cumulative Density

ssd_exposure

Percent Exposure

ssd_fit_dists

Fit Distributions

ssd_gof

Goodness of Fit

ssd_hc

Hazard Concentration

ssd_hp

Hazard Percent

ssd_match_moments

Match Moments

ssd_plot

SSD Plot

ssd_plot_cdf

Plot Cumulative Distribution Function

ssd_plot_cf

Cullen and Frey Plot

ssdtools-ggproto

Base ggproto classes for ggplot2

ssdtools-package

ssdtools: Species Sensitivity Distributions

stat_ssd

Plot Species Sensitivity Data

subset.fitdists

Subset fitdists

test_data

Test Data

weibull

Weibull Distribution

ssdtools

Species Sensitivity Distributions

v0.3.3

Apache License (== 2.0) | file LICENSE

Authors

Joe Thorley [aut, cre, ctr] (<https://orcid.org/0000-0002-7683-4592>), Carl Schwarz [aut, ctr], Angeline Tillmanns [ctb], Ali Azizishirazi [ctb], Rebecca Fisher [ctb], David Fox [ctb], Kathleen McTavish [ctb], Heather Thompson [ctb], Andy Teucher [ctb], Emilie Doussantousse [ctb], Stephanie Hazlitt [ctb], Nadine Hussein [ctb], Nan-Hung Hsieh [ctb], Sergio Ibarra Espinosa [ctb], Province of British Columbia [cph]

Initial release

ssdtools

Functions (50)

ssdtools

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