drc (version 1.2-0)

twofactors: Dose-response curves for multiple factors

Description

The dataset consists of several dose response curves for each combination of two factors that possibly influence the dose-response relationship.

Usage

data(twofactors)

source

Artificial data

Details

It turns out that the two factors only need to enter the model for the parameter e, in an additive way.

Examples

model1 <- multdrc(length ~ conc,
          date:treatment,
          data = twofactors, fct = l3(),
          collapse =
          list(~date:treatment-1, ~date:treatment-1,
               ~date:treatment-1),
          na.action=na.omit)
          
summary(model1)

rm(model1)