ufcgf

ufcwc

ufcdf


These data are forest inventory measures from the Upper Flat Creek stand of
the University of Idaho Experimental Forest, dated 1991.  <p></p><p>The file <code>ufc</code> contains all the data.  
<code>ufcwc</code> contains only Western red cedar.
<code>ufcgf</code> contains only grand fir.
</p>

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

ufc function

A data frame with the following 5 variables.
  <dl>
    <dt>Plot</dt><dd>Plot number</dd> <dt>Tree</dt><dd>Tree within plot</dd> <dt>Species</dt><dd>a factor with levels 
<code>DF</code> = Douglas-fir,
<code>GF</code> = Grand fir,
<code>SF</code> = Subalpine fir,
<code>WL</code> = Western larch,
<code>WC</code> = Western red cedar,
<code>WP</code> = White pine
</dd> <dt>Dbh</dt><dd>Diameter 137 cm perpendicular to the bole, mm </dd> <dt>Height</dt><dd>Height of the tree, in decimeters</dd> </dl> 

ufc: Height-diameter data for Upper Flat Creek, Idaho

Description

Arguments

Format

Source

References

Examples