# cement

0th

Percentile

##### Heat Evolved by Setting Cements

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

Keywords
datasets
##### Usage
cement
##### Details

Thirteen samples of Portland cement were set. For each sample, the percentages of the four main chemical ingredients was accurately measured. While the cement was setting the amount of heat evolved was also measured.

##### Format

x1, x2, x3, x4

Proportions (%) of active ingredients.

y

heat evolved in cals/gm.

##### References

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

• cement
##### Examples
# NOT RUN {
lm(y ~ x1 + x2 + x3 + x4, cement)
# }

Documentation reproduced from package MASS, version 7.3-51.5, License: GPL-2 | GPL-3

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