Returns the age-interpolated median of the preliminary_standards
based on LF & SF in seven GSED countries. This function is used
to set prior mean under keys "gsed2406" and "gsed2510".
count_mu_preliminary_standards(t, key = NULL)A vector of length length(t) with the median of the GCDG references.
Internal function. Called by dscore()
dscore:::count_mu_preliminary_standards(0:5)
#> [1] 9.731266 49.186179 65.661854 74.495944 78.626800 82.626800