The effect of terbuthylazin on growth rate
Test on the effect of terbuthylazin on Lemna minor, performed on an aseptic culture according to the OECD-guidelines.
data(terbuthylazin)
A data frame with 30 observations on the following 2 variables.
a numeric vector of dose values.
a numeric vector of relative growth rates.
Dose is
μ l^{-1}
and rgr is the relative growth rate of Lemna.
Cedergreen N. (2004). Unpublished bioassay data.
## displaying first 6 rows of the data set head(terbuthylazin) ## Fitting log-logistic model terbuthylazin.m1 <- drm(rgr~dose, data = terbuthylazin, fct = LL.4()) summary(terbuthylazin.m1) ## Fitting log-logistic model ## with Box-Cox transformation terbuthylazin.m2 <- boxcox(terbuthylazin.m1, method = "anova") summary(terbuthylazin.m2)
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