terbuthylazin: The effect of terbuthylazin on growth rate

Description Usage Format Details Source Examples

Description

Test on the effect of terbuthylazin on Lemna minor, performed on an aseptic culture according to the OECD-guidelines.

Usage

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Format

A data frame with 30 observations on the following 2 variables.

dose

a numeric vector of dose values.

rgr

a numeric vector of relative growth rates.

Details

Dose is

μ l^{-1}

and rgr is the relative growth rate of Lemna.

Source

Cedergreen N. (2004). Unpublished bioassay data.

Examples

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## 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)

drc documentation built on May 1, 2019, 8:43 p.m.

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