Allergy {gpk}R Documentation

Allergy Data Set

Description

Cosmetic products can cause allergenic response in users. Such a development can do significant harm to the name of its producer. Hence it is routine to carry out safety tests. In a study to compare irritability of 4 products, seven individuals were asked to apply each product on forearm. Higher the irritation score worse is the product.

Warning: since observations on the same individual are correlated, use of ANOVA may not be valid.

Usage

data(Allergy)

Format

A data frame with 7 observations on the following 4 variables.

ProdA

Irritation score for product A

ProdB

Irritation score for product B

ProdC

Irritation score for product C

ProdD

Irritation score for product D

Details

Cosmetic products can cause allergenic response in users. Such a development can do significant harm to the name of its producer. Hence it is routine to carry out safety tests. In a study to compare irritability of 4 products, seven individuals were asked to apply each product on forearm. Higher the irritation score worse is the product. Warning: since observations on the same individual are correlated, use of ANOVA may not be valid.

Source

http://ces.iisc.ernet.in/hpg/nvjoshi/statspunedatabook/databook.html

Examples

data(Allergy)
friedman.test(as.matrix(Allergy))

[Package gpk version 1.0 Index]