bda (version 13.4.13)

zr: occipitofrontal head circumference data

Description

OFC data for singleton live births with gestational age at least 38 weeks in city "R" and county "Z".

Usage

data(zr)

Format

A data frame with three variables.

Sex	character	'male' or 'female'
Region	character	city "R" or county "Z".
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.

Examples

# NOT RUN {
 data(zr)
 dim(zr)
# }