frets: Head Dimensions in Brothers
Description
The 'frets' data frame has 25 rows and 4 columns.The data consist of measurements of the length and breadth of the
heads of pairs of adult brothers in 25 randomly sampled families.
All measurements are expressed in millimetres.
source
Frets, G.P. (1921) Heredity of head form in man. Genetica, 3, 193.References
Whittaker, J. (1990) Graphical Models in Applied Multivariate
Statistics. John Wiley.Examples
Run this codedata(frets)
## maybe str(frets) ; plot(frets) ...
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