R: Stiffness of Springs

spring {ANOM} | R Documentation

## Stiffness of Springs

### Description

Weights required to stretch springs of four brands by 0.1 inches.

### Usage

    data(spring)

### Format

A data frame with 24 observations on the following 2 variables.

`brand`

  A factor with 4 levels giving the brands of springs.

`weight`

  A numeric vector giving the weight required to extend the spring by 0.1 inches.

### Source

Nelson, P. R., Wludyka, P. S., Copeland, K. A. F. (2005) The Analysis of Means: A Graphical Method for Comparing Means, Rates, and Proportions. Society for Industrial and Applied Mathematics (SIAM), Philadelphia, PA, and American Statistical Association (ASA), Alexandria, VA, p. 53.

### Examples

    data(spring)
    str(spring)

[Package ANOM version 0.5 Index]