blowdown

blowAPB

blowBF


Data from the Boundary Waters Canoe Area Wilderness Blowdown.  The data frame blowdown
includes nine species of trees,
blowAPB gives data for aspen and
paper birch, while 
blowBF gives data for Balsam Fir only.


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

blowdown function

This data frame contains the following columns:
 <dl>
    <dt>D</dt><dd>
Tree diameter, in cm
    </dd> <dt>S</dt><dd>
 Proportion of basal area killed for the four species BF, C, PB, BS, a measure of
 local severity of the storm.
    </dd> <dt>y</dt><dd>
 1 of the tree died, 0 if it survived
    </dd> <dt>SPP</dt><dd>
BF= balsam fir, BS= black spruce, C= cedar, JP= jackpine, PB= paper birch,
RP= red pine, RM= red maple, BA = black ash, A= aspen.
    </dd> </dl> 

blowdown: Blowdown data

Description

Arguments

Format

Source

References

Examples