A data frame with 76 observations on the following 7 variables.
age
a character vector with simple ages
f1
a numeric vector, Karup-King factor
f2
a numeric vector, Karup-King factor
f3
a numeric vector, Karup-King factor
d1
a numeric vector, used in karup_king
function, do not edit by hand
d2
a numeric vector, used in karup_king
function, do not edit by hand
d3
a numeric vector, used in karup_king
function, do not edit by hand