Description Usage Format Source References Examples
Anthropometric data collected in the 1950's for 49 monozygotic and 40 dizygotic male twins. See also female twins (f.twins) .
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A data frame with 89 observations on the 6 variables and a factor indicating whether the twins are mono- or di-zygotic.
Type
a factor with levels monozygotic
dizygotic
STA1
Stature of first twin (cm)
HIP1
Hip width of first twin (cm)
CHE1
Chest circumference of first twin (cm)
STA2
Stature of second twin (cm)
HIP2
Hip width of second twin (cm)
CHE2
Chest circumference of second twin (cm)
Data courtesy of the Institute of Anthropology, University of Hamburg
Flury, B.D. (1997) A First Course in Multivariate Statistics, New York: Springer
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