R: Body weight of rats in a toxicity study

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 and 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 1.3.17 Index]