Quantal Response Analysis for Dose-Mortality Data

Functions are provided that implement the use of the Fieller's formula methodology, for calculating a confidence interval for a ratio of (possibly, correlated) means. See Fieller (1954) . Here, the application of primary interest is to studies of insect mortality response to increasing doses of a fumigant, or, e.g., to time in coolstorage. The formula is used to calculate a confidence interval for the dose or time required to achieve a specified mortality proportion, commonly 0.5 or 0.99. A vignette demonstrates link functions that may be considered, and alternative choices of error family. Note in particular the beta-binomial error family. See also Maindonald, Waddell, and Petry (2001) .


Reference manual

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0.1.8 by John Maindonald, 16 days ago

Browse source code at https://github.com/cran/qra

Authors: John Maindonald

Documentation:   PDF Manual  

GPL-3 license

Imports ggplot2, lme4, splines

Depends on lattice

Suggests knitr, rmarkdown, plyr, robustlmm, MASS, fitODBOD, glmmTMB, VGAM, bbmle, epiphy, latticeExtra, xtable, testDriveR, gamlss, bookdown, prettydoc, DHARMa, kableExtra, magrittr, afex, plotrix, dfoptim, optimx

See at CRAN