sleep1


Includes species averages for 62 mammals. 


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

sleep1 function

This data frame uses spcies as row lable and contains the following columns:
 <dl>
    <dt>SWS</dt><dd>
 Slow wave nondreaming sleep, hrs/day
    </dd> <dt>PS</dt><dd>
 Paradoxical dreaming sleep, hrs/day
    </dd> <dt>TS</dt><dd>
 Total sleep, hrs/day
    </dd> <dt>BodyWt</dt><dd>
 Body weight in kg
    </dd> <dt>BrainWt</dt><dd>
 Brain weight in g
    </dd> <dt>Life</dt><dd>
 Maximum life span, years
    </dd> <dt>GP</dt><dd>
 Gestation time, days
    </dd> <dt>P</dt><dd>
 Predation index, 1=low,5=hi
    </dd> <dt>SE</dt><dd>
 Sleep exposure index 1=exposed, 5=protected
    </dd> <dt>D</dt><dd>
 Danger index, 1=least, 5=most
    </dd> </dl> 

Format

Allison, T. and Cicchetti, D. (1976). 
Sleep in
Mammals: Ecological and Constitutional Correlates 
<em>Science</em>, vol. 194, pp. 732-734.

sleep1: Sleep in mammals

Description

Arguments

Format

Source

References

Examples