walleye {alr4}

Walleye length at age

Description

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.

Format

A data frame with 3198 observations on the following 3 variables.

age

Age of the fish, years

length

Length, mm

period

1 = pre 1990, 2 = 1991-1996, 3=1997-2000

Source

Michelle LeBeau

References

Weisberg, S. (2014). Applied Linear Regression, 4th edition. Hoboken NJ: Wiley.

Examples

head(walleye)