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drc (version 3.0-1)

Analysis of Dose-Response Curves

Description

Analysis of dose-response data is made available through a suite of flexible and versatile model fitting and after-fitting functions.

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Version

Install

install.packages('drc')

Monthly Downloads

24,801

Version

3.0-1

License

GPL-2 | file LICENCE

Maintainer

Last Published

August 29th, 2016

Functions in drc (3.0-1)

boxcox.drc

Transform-both-sides Box-Cox transformation
anova.drc

ANOVA for dose-response model fits
leaflength

Leaf length of barley
acidiq

Acifluorfen and diquat tested on Lemna minor.
backfit

Calculation of backfit values from a fitted dose-response model
algae

Volume of algae as function of increasing concentrations of a herbicide
CIcompX

Calculation of combination index for binary mixtures
bread.drc

Bread and meat for the sandwich
auxins

Effect of technical grade and commercially formulated auxin herbicides
chickweed

Germination of common chickweed (Stellaria media)
coef.drc

Extract Model Coefficients
compParm

Comparison of parameters
decontaminants

Performance of decontaminants used in the culturing of a micro-organism
deguelin

Deguelin applied to chrysanthemum aphis
comped

Comparison of effective dose values
ED.drc

Estimating effective doses
earthworms

Earthworm toxicity test
daphnids

Daphnia test
drmc

Sets control arguments
confint.drc

Confidence Intervals for model parameters
EDcomp

Comparison of relative potencies between dose-response curves
getInitial

Showing starting values used
fitted.drc

Extract fitted values from model
fplogistic

Fractional polynomial-logistic dose-response models
G.aparine

Herbicide applied to Galium aparine
gaussian

Normal and log-normal biphasic dose-response models
getMeanFunctions

Display available dose-response models
finney71

Example from Finney (1971)
etmotc

Effect of erythromycin on mixed sewage microorganisms
germination

Germination of three crops
lin.test

Lack-of-fit test for the mean structure based on cumulated residuals
hatvalues.drc

Model diagnostics for nonlinear dose-response models
isobole

Creating isobolograms
heartrate

Heart rate baroreflexes for rabbits
lettuce

Hormesis in lettuce plants
logLik.drc

Extracting the log likelihood
lepidium

Dose-response profile of degradation of agrochemical using lepidium
glymet

Glyphosate and metsulfuron-methyl tested on algae.
M.bahia

Effect of an effluent on the growth of mysid shrimp
H.virescens

Mortality of tobacco budworms
maED

Estimation of ED values using model-averaging
MAX

Maximum mean response
mselect

Dose-response model selection
mr.test

Mizon-Richard test for dose-response models
modelFit

Assessing the model fit
nasturtium

Dose-response profile of degradation of agrochemical using nasturtium
metals

Data from heavy metal mixture experiments
mecter

Mechlorprop and terbythylazine tested on Lemna minor
mixture

Fitting binary mixture models
methionine

Weight gain for different methionine sources
predict.drc

Prediction
print.drc

Printing key features
plot.drc

Plotting fitted dose-response curves
neill.test

Neill's lack-of-fit test for dose-response models
spinach

Inhibition of photosynthesis
PR

Expected or predicted response
simDR

Simulating ED values under various scenarios
noEffect

Testing if there is a dose effect at all
searchdrc

Searching through a range of initial parameter values to obtain convergence
S.capricornutum

Effect of cadmium on growth of green alga
print.summary.drc

Printing summary of non-linear model fits
rdrm

Simulating a dose-response curve
secalonic

Root length measurements
selenium

Data from toxicology experiments with selenium
vinclozolin

Vinclozolin from AR in vitro assay
ryegrass

Effect of ferulic acid on growth of ryegrass
W1.4

The four-parameter Weibull functions
ursa

Model function for the universal response surface approach (URSA) for the quantitative assessment of drug interaction
S.alba

Potency of two herbicides
vcov.drc

Calculating variance-covariance matrix for objects of class 'drc'
O.mykiss

Test data from a 21 day fish test
RScompetition

Competition between two biotypes
residuals.drc

Extracting residuals from the fitted dose-response model
P.promelas

Effect of sodium pentachlorophenate on growth of fathead minnow
update.drc

Updating and re-fitting a model
summary.drc

Summarising non-linear model fits