Draws a Keyfitz-style kinship diagram given a kinship object created by the kin
function. Displays expected kin counts for a Focal aged 'a'.
plot_diagram(kin_total, rounding = 3)
data.frame. values in column kin
define the relative type - see demokin_codes()
. Values in column count
are the expected number of relatives.
numeric. Number of decimals to show in diagram.
A Keyfitz-style kinship plot.