Description Usage Format Details Source References Examples
Data from the fourth dutch growth study in 1997.
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A data frame with 6848 observations on the following 10 variables.
defnr
identification number
age
age in decimal years
hgt
length/height in cm
wgt
weight in kg
hc
head circumference in cm
hgt.z
z-score length/height
wgt.z
z-score weight
hc.z
z-score head circumference
bmi.z
z-score body mass index
hfw.z
z-score height for weight
z-scores were calculated relative to the Dutch references.
The Fourth Dutch Growth Study is a cross-sectional study that measures growth and development of the Dutch population between ages 0 and 21 years. The study is a follow-up to earlier studies performed in 1955, 1965 and 1980, and its primary goal is to update the 1980 references.
van Buuren S and Fredriks A (2001) Worm plot: A simple diagnostic device for modeling growth reference curves Statistics in Medicine, 20:1259-1277
Schnabel S and Eilers P (2009) Optimal expectile smoothing Computatational Statistics and Data Analysis, 53: 4168-4177
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Loading required package: parallel
Loading required package: mboost
Loading required package: stabs
This is mboost 2.8-1. See 'package?mboost' and 'news(package = "mboost")'
for a complete list of changes.
Loading required package: BayesX
Loading required package: shapefiles
Loading required package: foreign
Attaching package: 'shapefiles'
The following objects are masked from 'package:foreign':
read.dbf, write.dbf
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