Description Usage Format Details Source Examples
Body weights of male rats were compared between a control group and a group which had received a high dose of a chemical in a toxicity study after a period of recovery
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A data frame with 20 observations on the following 2 variables.
a factor with two levels, Dosis and Kon, where Dosis is the high dose group, consisiting of ten individulas and Kon is the control group, consisting of ten individuals
a numeric vector containing the values of response variable, final body weight in gramm
Aim was to test that application of the chemical does not lead to a relevantly lowered or heightened body weight after a time of recovery. 0.8 and 1.25 were defined as relevance boundaries compared to the mean of control group
Hauschke, D. (1999). Biometrische Methoden zur Auswertung und Planung von Sicherheitsstudien. Habilitationsschrift, Fachbereich Statistik, Universtaet Dortmund.
1 2 3 4 | library(mratios)
data(rat.weight)
boxplot(weight~group, data=rat.weight)
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