pikdat5 {mixdist} | R Documentation |
The raw data pikeraw
give the lengths of 523 pike (Esox lucius), and there are known to
be five age-groups in the sample. We grouped the lengths over 25 intervals to obtain the grouped
data given as separate samples for each age group determined by scale reading.
The pikdat5
data frame has 25 rows and 6 columns.
data(pikdat5)
This data frame contains the following columns:
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(pikdat5)