m.twins {Flury} | R Documentation |
Anthropometric data collected in the 1950's for 49 monozygotic and 40 dizygotic male twins. See also female twins (f.twins) .
data(m.twins)
A data frame with 89 observations on the 6 variables and a factor indicating whether the twins are mono- or di-zygotic.
Type
monozygotic
dizygotic
STA1
HIP1
CHE1
STA2
HIP2
CHE2
Data courtesy of the Institute of Anthropology, University of Hamburg
Flury, B.D. (1997) A First Course in Multivariate Statistics, New York: Springer
data(m.twins) ## Not run: pairs(m.twins[,-1], lower.panel = function(x, y){ points(x, y, pch = unclass(m.twins[,1]), col = as.numeric(m.twins[,1]))}, main = "Pairwise scatter plots for male twins") ## End(Not run)