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 (2005),
"Applied Linear Regression," 3rd edition, Wiley. It includes all the
data sets discussed in the book (except one), and a few functions that
are tailored to the methods discussed in the book.  As of version 2.0.0,
this package depends on the car package. Many functions formerly
in alr3 have been renamed and now reside in car.
Data files have beeen lightly modified to make some data columns row labels.

Sanford Weisberg

alr3

Data to accompany Applied Linear Regression 3rd 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