ofc: occipitofrontal head circumference data
Description
OFC data for singleton live births with gestational age at least 38 weeks.format
A data frame with 2019 observations on 4 variables.
lll{
Year
numeric 2006 -- 2009
Sex
character 'male' or 'female'
Gestation
numeric Gestational age (in weeks).
Head
numeric head size.
}References
Wang, B. and Wertelecki, W. (2012)
Density Estimation for Data With Rounding Errors.
Computational Statistics and Data Analysis,
(in press), doi: 10.1016/j.csda.2012.02.016.