barley {drc} | R Documentation |
In an experiment barley was grown in a hydroponic solution with a herbicide.
data(barley)
A data frame with 42 observations on the following 2 variables.
Dose
DW
The dataset exhibits a large hormetical effect.
Nina Cedergreen, Royal Veterinary and Agricultural University, Denmark.
## Fitting a hormesis model fit.ml3c <- multdrc(DW~Dose, data=barley, fct=ml3c(), boxcox=TRUE) ## Plottinf fitted curve and original data plot(fit.ml3c, conLevel=0.001, type="points", legend=FALSE, ylab="Produced leaf length(cm)", xlab="Metsulfuron-methyl(mg/l)") rm(fit.ml3c)