walleye


These data give length and age for over 3000 walleye (a type of fish) captured in Butternut
Lake, Wisconsin, in three periods with different management method in place.


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

walleye function

A data frame with 3198 observations on the following 3 variables.
  <dl>
    <dt>age</dt><dd>Age of the fish, years</dd> <dt>length</dt><dd>Length, mm</dd> <dt>period</dt><dd>1 = pre 1990, 2 = 1991-1996, 3=1997-2000</dd> </dl> 

walleye: Walleye length at age

Description

Arguments

Format

Source

References

Examples