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. link