The secher data frame has 107 rows and 4 columns. It contains
ultrasonographic measurements of fetuses immediately before birth and
subsequent
birth weight.
Usage
secher
Arguments
source
D. Kronborg and L.T. Skovgaard (1990), Regressionsanalyse,
Table~3.1, FADLs Forlag (in Danish).
Secher et al. (1987), Eur.j.obs.gyn.repr.biol., 24, 1--11.