cement {MASS} | R Documentation

## Heat Evolved by Setting Cements

### Description

Experiment on the heat evolved in the setting of each of 13 cements.

### Usage

    data(cement)

### Format

`x1, x2, x3, x4`
  Proportions (%) of active ingredients
`y`
  heat evolved in cals/gm

### Source

Hald, A. (1957) Statistical Theory with Engineering Applications. Wiley, New York.

### Examples

    data(cement)
    lm(y ~ x1 + x2 + x3 + x4, cement)