Effect of an effluent on the growth of mysid shrimp
Cedergreen-Ritz-Streibig dose-reponse model for describing hormesis
Fitting mixture models
Asymptotic regression model
Acifluorfen and diquat tested on Lemna minor.
The Cedergreen-Ritz-Streibig model
Exponential decay model
Comparing selectivity indices across curves
Daphnia test
Deguelin applied to chrysanthemum aphis
Weibull model functions
Effect of sodium pentachlorophenate on growth of fathead minnow
Effect of cadmium on growth of green alga
Leaf length of barley
Estimation of ED values using model-averaging
Effect of technical grade and commercially formulated auxin herbicides
Simulating a dose-response curve
Estimating effective doses
The log-logistic function
Fractional polynomial-logistic dose-response models
Michaelis-Menten model
Sets control arguments
Extract fitted values from model
The modified baro5 function
The two-parameter Weibull functions
Checking the model fot
Earthworm toxicity test
Log-normal dose-response model
Mizon-Richard test for dose-response models
Model-robust dose-response modelling
Mechlorprop and terbythylazine tested on Lemna minor
Mortality of tobacco budworms
Heart rate baroreflexes for rabbits
Isobutylalcohol in nutrient solution in which lettuce plants were grown
Model selection
Gompertz growth models
Effect of erythromycin on mixed sewage microorganisms
Expected or predicted response
The five-parameter log-logistic function
Potency of two herbicides
The two-parameter log-logistic function
Dose-response profile of degradation of agrochemical using lepidium
Test data from a 21 day fish test
The four-parameter Weibull functions
The Cedergreen-Ritz-Streibig model
Lack-of-fit test for the mean structure based on cumulated residuals
The effect of terbuthylazin on growth rate
Herbicide applied to Galium aparine
Confidence Intervals for model parameters
Summarising non-linear model fits
Extract Model Coefficients
Neill's lack-of-fit test for dose-response models
Bread and meat for the sandwich
The Brain-Cousens hormesis models
Plotting fitted curves for a 'drc' or 'mrdrc' object
The Brain-Cousens hormesis models
Example from Finney (1971)
Calculating yield loss parameters
The three-parameter Weibull functions
Maximum mean response
ANOVA for non-linear model fits
Information on estimation
Fitting dose-response models
Weight gain for different methionine sources
Searching through a range of initial parameter values to obtain convergence
Comparison of parameters
The derivative of the Gompertz function
Extracting residuals from model
Printing key features
Vinclozolin from AR in vitro assay
The three-parameter log-logistic function
Display available dose-response models
Transform-both-sides Box-Cox transformation
Continuous data from ECVAM
Inhibition of photosynthesis
Calculating variance-covariance matrix for objects of class 'drc'
Competition between two biotypes
Glyphosate and metsulfuron-methyl tested on algae.
Extracting the log likelihood
Showing starting values used
Dose-response profile of degradation of agrochemical using nasturtium
Prediction
Example of plant growth curve from Covarelli and Onofri (1998)
The logistic model
Root length
Effect of ferulic acid on growth of ryegrass
Volume of algae as function of increasing concentrations of a herbicide
Mean function for the Gompertz dose-response or growth curve
Updating and re-fitting a model
The four-parameter log-logistic function
Comparison of effective dose values
Creating isobolograms
Fitting multiple dose-response curves with random effects
Simulating ED values under various scenarios
Printing summary of non-linear model fits