CRAN/E | qra

qra

Quantal Response Analysis for Dose-Mortality Data

Installation

About

Functions are provided that implement the use of the Fieller's formula methodology, for calculating a confidence interval for a ratio of (commonly, correlated) means. See Fieller (1954) doi:10.1111/j.2517-6161.1954.tb00159.x. 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. Vignettes demonstrate link functions that may be considered, checks on fitted models, and alternative choices of error family. Note in particular the betabinomial error family. See also Maindonald, Waddell, and Petry (2001) doi:10.1016/S0925-5214(01)00082-5.

github.com/jhmaindonald/qra
Bug report File report

Key Metrics

Version 0.2.7
R ≥ 4.1.0
Published 2021-10-29 1074 days ago
Needs compilation? no
License GPL-3
CRAN checks qra results

Downloads

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Maintainer

Maintainer

John Maindonald

Authors

John Maindonald

aut / cre

Material

NEWS
Reference manual
Package source

Vignettes

Plot MeBr Apple Fumigation Data
Distributions for Quantal Responses
Quantal Response Analysis Functions

macOS

r-release

arm64

r-oldrel

arm64

r-release

x86_64

r-oldrel

x86_64

Windows

r-devel

x86_64

r-release

x86_64

r-oldrel

x86_64

Old Sources

qra archive

Depends

R ≥ 4.1.0
lattice
latticeExtra
knitr
rmarkdown

Imports

lme4
splines
ggplot2

Suggests

fitODBOD
VGAM
glmmTMB ≥ 1.1.2
gamlss
prettydoc
DHARMa
kableExtra ≥ 1.2
plotrix
dfoptim
optimx
bookdown