A data frame with 76 observations on the following 7 variables.
agea character vector with simple ages
f1a numeric vector, Karup-King factor
f2a numeric vector, Karup-King factor
f3a numeric vector, Karup-King factor
d1a numeric vector, used in karup_king function, do not edit by hand
d2a numeric vector, used in karup_king function, do not edit by hand
d3a numeric vector, used in karup_king function, do not edit by hand