turkey


Data from an experiment on the growth of turkeys.  60 pens of turkeys were
grown with a similar diet, supplemented with a dose of methionine from one of
three sources.  The response is average pen weight.  Recorded is dose, source,
m, always 5 except for dose=0, average weight gain, and within group SS.


datasets

This package is a companion to the textbook S. Weisberg (2014),
"Applied Linear Regression," 4rd edition, Wiley. It includes all the
data sets discussed in the book and one function to access the textbook's
website.
This package depends on the car package.  Many data files in this package
are included in the alr3 package as well, so only one of them should be
loaded.

Sanford Weisberg

alr4

Data to accompany Applied Linear Regression 4rd edition

turkey function

This data frame contains the following columns:
 <dl>
    <dt>A</dt><dd>
 Dose: Amount of supplement as a percent of the total diet
    </dd> <dt>Gain</dt><dd>
 Ave. weight gain, over all replications
    </dd> <dt>S</dt><dd>
    A factor for the source of methionine, three levels numbers 1, 2 and 3.
    </dd> <dt>m</dt><dd>
 Number of replications or pens
    </dd> <dt>SD</dt><dd>
 SD of the m pens with the same values of S and A.
    </dd> </dl> 

Format

R. D. Cook and J. Witmer (1985). A note on parameter-effects curvature.
<em>Journal of the American Statistical Association</em>, 80, 872--878.

turkey: Turkey data, all sources

Description

Arguments

Format

Source

References

Examples