M4 data frames have
40 to 72 rows and three columns.
Six bioassay on the action of the herbicides chlorsulfuron and metsulfuron
methyl on the callus area of colonies of Brassica napus L. The
experiments consist of measurements for different dose levels and can be
M2) or unbalanced (
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These data frame contain the following columns:
indicator variable for each tested dose;
the tested dose (nmol/l);
the callus area (mm^2).
chlorsulfuron are the same.
metsulfuron are the same.
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.
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 8.
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