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) .


News

Reference manual

It appears you don't have a PDF plugin for this browser. You can click here to download the reference manual.

install.packages("qra")

0.1.8 by John Maindonald, 14 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