rockbass data frame has 243 rows and 1 column.
The age data are from a sample of rock bass trap-netted from Cayuga Lake, New York by Chapman and Robson, as reported
by Seber (2002; page 417) and were expanded to individual observations from the age frequency table.
This data frame contains the following columns:
age of individual rock bass in years
Seber, G. A. F. 2002. The Estimation of Animal Abundance and Related Parameters, Second Edition. The Blackburn Press, Caldwell, New Jersey. 654 p.