drc (version 0.8-2)

TM: A suite of bioassays

Description

The data set consists of observations from 7 bioassays plus additional control measurements (dose equal to 0).

Usage

data(TM)

source

Cedergreen N. (2004) Unpublished bioassay data.

Details

dose is the concentration of herbicide. pct is the grouping variable, separating observations into curves. rgr is the response (relative growth rate).

Examples

TM[1:20,]  # displaying first 20 lines of the data set

## Fitting a Weibull model
## cControl measurements are specified using the 'cm' argument 
model1 <- multdrc(rgr~dose, pct, cm="999", data=TM, fct=g4())
summary(model1)

rm(model1)