Female Twins

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Description

Anthropometric data collected in the 1950's for 36 mono- and 43 dizygotic female twins. See also m.twins

Usage

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Format

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)

Source

Data courtesy of the Institute of Anthropology, University of Hamburg

References

Flury, B.D. (1997) A First Course in Multivariate Statistics, New York: Springer

Examples

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data(f.twins)
## Not run: pairs(f.twins[,-1],
  lower.panel = function(x, y){ points(x, y,
  pch = unclass(f.twins[,1]),
  col = as.numeric(f.twins[,1]))},
  main = "Pairwise scatter plots for male twins")
## End(Not run)