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