pikeraw {mixdist} | R Documentation |
The data give the lengths of 523 pike (Esox lucius), sampled in 1965 from Heming Lake, Manitoba, Canada. There are known to be five age-groups in the sample. For each fish, the age group is determined by scale reading.
The pikeraw
data frame has 523 rows and 2 columns.
data(pikeraw)
This data frame contains the following columns:
the lengths of 523 pike
the age groups of 523 pike
Macdonald, P.D.M. and T.J. Pitcher (1979). Age-groups from size-frequency data: a versatile and efficient method of analysing distribution mixtures. Journal of the Fisheries Research Board of Canada 36, 987-1001.
Macdonald, P.D.M. (1987). Analysis of length-frequency distributions. In R.C. Summerfelt and G.E. Hall [editors], Age and Growth of Fish, Iowa State University Press, Ames, Iowa. pp 371-384.
http://www.math.mcmaster.ca/peter/mix/demex/expike.html
data(pikeraw)