mistat (version 1.0-3)

STRESS: Stress Levels

Description

Results of a 33 factorial experiment to investigate the effects of three factors $A, B, C$ on the stress levels of a membrane $Y$. The first three columns of the data provide the levels of the three factors, and column 4 presents the stress values.

Usage

data(STRESS)

Format

A data frame with 27 observations on the following 4 variables.

A

levels of factor $A$, a numeric vector

B

levels of factor $B$, a numeric vector

C

levels of factor $C$, a numeric vector

stress

stress levels of a membrane $Y$, a numeric vector

Source

Oikawa and Oka (1987)

Examples

data(STRESS)

summary(                                       
  aov(stress ~ (A+B+C)^3 +I(A^2)+I(B^2)+I(C^2),
      data=STRESS))