secher {ISwR} | R Documentation |
The secher
data frame has 107 rows and 4 columns. It contains
ultrasonographic measurements of fetuses immediately before birth and
subsequent
birth weight.
This data frame contains the following columns:
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.
data(secher) plot(bwt~ad, data=secher, log="xy")