case0902

These data were used by Ramsey and Schaefer (1997) to demonstrate multiple regression. The dataset was originally collected by Sacher and Stafeldt (1974) and provided (for varying sample sizes) average values of brain weight, body weight, gestation period and litter size for 96 placental mammal species.

datasets

Contains functions from: Aho, K. (2014) Foundational and Applied Statistics for Biologists using R.  CRC/Taylor and Francis, Boca Raton, FL, ISBN: 978-1-4398-7338-0.

Ken Aho

asbio

A Collection of Statistical Tools for Biologists

case0902 function

A data frame with 96 observations on the following 5 variables.<dl>
 <dt><code>Xs</code></dt>
<dd>A factor defining common names for mammal species under examination.</dd> <dt><code>Y</code></dt>
<dd>Brain weight (in grams).</dd> <dt><code>Xb</code></dt>
<dd>Body weight (in kilograms).</dd> <dt><code>Xg</code></dt>
<dd>Gestation period length (in days).</dd> <dt><code>Xl</code></dt>
<dd>Litter size.</dd> 
</dl>

Format

Dataset of mammal traits from Ramsey and Schaefer (1997) — case0902

A data frame with 96 observations on the following 5 variables.<dl>
 <dt><code>Xs</code></dt>
<dd>A factor defining common names for mammal species under examination.</dd>

 <dt><code>Y</code></dt>
<dd>Brain weight (in grams).</dd>

 <dt><code>Xb</code></dt>
<dd>Body weight (in kilograms).</dd>

 <dt><code>Xg</code></dt>
<dd>Gestation period length (in days).</dd>

 <dt><code>Xl</code></dt>
<dd>Litter size.</dd>

 
</dl>

case0902: Dataset of mammal traits from Ramsey and Schaefer (1997)

Description

Usage

Arguments

Format

References

Examples