ssdtools-package {ssdtools}R Documentation

ssdtools: Species Sensitivity Distributions

Description

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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 gamma, log-logistic, log-normal and Weibull to censored and/or weighted data. Multiple distributions can be averaged using Akaike Information Criteria. Confidence intervals on hazard concentrations and proportions are produced by parametric bootstrapping.

Author(s)

Maintainer: Joe Thorley joe@poissonconsulting.ca (ORCID) [contractor]

Authors:

Other contributors:

See Also

Useful links:


[Package ssdtools version 1.0.6 Index]