Example from Finney (1971)
Heart rate baroreflexes for rabbits
Mortality of tobacco budworms
The five-parameter log-logistic function
Test data from a 21 day fish test
Effect of sodium pentachlorophenate on growth of fathead minnow
Earthworm toxicity test
Herbicide applied to Galium aparine
Asymptotic regression model
Effect of an effluent on the growth of mysid shrimp
The two-parameter log-logistic function
Bayesian Information Criterion for dose-response models
The Brain-Cousens hormesis models
The three-parameter log-logistic function
Volume of algae as function of increasing concentrations of a herbicide
Daphnia test
Information on estimation
ANOVA for dose-response model fits
The four-parameter log-logistic function
Acifluorfen and diquat tested on Lemna minor.
Extracting the log likelihood
Dose-response model for estimation of no effect concentration (NEC).
Dose-response profile of degradation of agrochemical using lepidium
Bayesian Information Criterion for dose-response models
Confidence Intervals for model parameters
Sets control arguments
The logistic model
Bread and meat for the sandwich
Example of plant growth curve from Covarelli and Onofri (1998)
The two-parameter Weibull functions
Comparison of parameters
The modified baro5 function
Extract Model Coefficients
Competition between two biotypes
Comparison of effective dose values
Isobutylalcohol in nutrient solution in which lettuce plants were grown
Showing starting values used
Michaelis-Menten model
The three-parameter Weibull functions
Effect of erythromycin on mixed sewage microorganisms
Maximum mean response
Estimating effective doses
Transform-both-sides Box-Cox transformation
Deguelin applied to chrysanthemum aphis
The four-parameter Weibull functions
The Brain-Cousens hormesis models
Creating isobolograms
Gompertz growth models
Expected or predicted response
Potency of two herbicides
Fitting dose-response models
Extract fitted values from model
Effect of technical grade and commercially formulated auxin herbicides
Log-normal dose-response model
The log-logistic function
Glyphosate and metsulfuron-methyl tested on algae.
Display available dose-response models
Estimation of ED values using model-averaging
Lack-of-fit test for the mean structure based on cumulated residuals
Mechlorprop and terbythylazine tested on Lemna minor
Neill's lack-of-fit test for dose-response models
Printing key features
Calculating yield loss parameters
Calculating variance-covariance matrix for objects of class 'drc'
Vinclozolin from AR in vitro assay
The effect of terbuthylazin on growth rate
Updating and re-fitting a model
Printing summary of non-linear model fits
Searching through a range of initial parameter values to obtain convergence
Fitting mixture models
Dose-response profile of degradation of agrochemical using nasturtium
Two-phase dose-response model
Model selection
Extracting residuals from model
Model-robust dose-response modelling
Prediction
The derivative of the Gompertz function
Simulating a dose-response curve
Leaf length of barley
Weibull model functions
Model function for the universal response surface approach (URSA) for the quantitative assessment of drug interaction
Weight gain for different methionine sources
Plotting fitted curves for a 'drc' or 'mrdrc' object
Simulating ED values under various scenarios
Inhibition of photosynthesis
The Cedergreen-Ritz-Streibig model
Fractional polynomial-logistic dose-response models
The Cedergreen-Ritz-Streibig model
Cedergreen-Ritz-Streibig dose-reponse model for describing hormesis
Effect of cadmium on growth of green alga
Mean function for the Gompertz dose-response or growth curve
Exponential decay model
Comparing selectivity indices across curves
Mizon-Richard test for dose-response models
Checking the model fot
Effect of ferulic acid on growth of ryegrass
Root length measurements
Summarising non-linear model fits