Metsulfuron Methyl Data
The metsulfuron data frame has 40 rows and 3 columns.
Bioassay on the action of metsulfuron methyl, a sulfunylurea herbicide, on a tissue culture of Brassica napus L. The experiment consists of 8 doses and 5 replications at each level.
data(metsulfuron)
This data frame contains the following columns:
groupindicator variable for each tested dose;
dosethe tested dose (nmol/l);
areathe callus area (mm^2).
The data were obtained from
Seiden, P., Kappel, D. and Streibig, J. C. (1998) Response of Brassica napus L. tissue culture to metsulfuron methyl and chlorsulfuron. Weed Research, 38, 221–228. Dataset M2.
Bellio, R., Jensen, J.E. and Seiden, P. (2000). Applications of likelihood asymptotics for nonlinear regression in herbicide bioassays. Biometrics, 56, 1204–1212.
Brazzale, A. R. (2000) Practical Small-Sample Parametric Inference. Ph.D. Thesis N. 2230, Department of Mathematics, Swiss Federal Institute of Technology Lausanne. Section 5.3, Example 7.
data(metsulfuron)
attach(metsulfuron)
plot(dose, area, xlab = "tested dose (nmol/l)",
ylab = "log callus area (mm^2)", log = "y")
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