rat.weight {mratios}R Documentation

Body weight of rats in a toxicity study

Description

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

Usage

data(rat.weight)

Format

A data frame with 20 observations on the following 2 variables.

group
a factor with two levels Dosis Kon, where Dosis is the high dose group, consisiting of ten individulas and Kon is the control group, consisting of ten individuals
weight
a numeric vector containing the values of response variable, final body weight in gramm

Details

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

Source

Hauschke, D. (1999): Biometrische Methoden zur Auswertung und Planung von Sicherheitsstudien. Habilitationsschrift, Fachbereich Statistik, Universtaet Dortmund.

Examples


library(mratios)

data(rat.weight)
boxplot(weight~group, data=rat.weight)

boxplot(weight~group, data=rat.weight)

[Package mratios version 1.3.9 Index]