| ducklings {VGAM} | R Documentation |
Relative Frequencies of Serum Proteins in White Pekin Ducklings
Description
Relative frequencies of serum proteins in white Pekin ducklings as determined by electrophoresis.
Usage
data(ducklings)Format
The format is: chr "ducklings"
Details
Columns p1, p2, p3
stand for pre-albumin, albumin, globulins respectively.
These were collected from 3-week old white Pekin ducklings.
Let Y_1 be proportional to the total milligrams of
pre-albumin in the blood serum of a duckling.
Similarly,
let Y_2 and Y_3 be directly proportional
to the same factor as Y_1 to the total milligrams
respectively of albumin and globulins in its blood serum.
The proportion of pre-albumin is given by
Y_1/(Y_1 + Y_2 + Y_3),
and similarly for the others.
Source
Mosimann, J. E. (1962)
On the compound multinomial distribution,
the multivariate \beta-distribution,
and correlations among proportions,
Biometrika,
49, 65–82.
See Also
Examples
print(ducklings)