Thanks.
So with kid.weights I will have (see below) - or is my example use of quantreg
wrong?
"""
#growth_chart_create.R
library(UsingR)
library(quantreg)
lbs_to_kg<-1/2.2046
inch_to_cm<-2.54
data(kid.weights)
data_kids<-kid.weights
data_kids$weight_kg<-kid.weights$weight*lbs_to_kg
data_kids$length
I think you have the reference for the lmreg package
wrong. It looks like it is Carey VJ. LMSqreg: An R
package for ColeGreen reference centile curves, 2002,
http://www.biostat.harvard.edu/∼carey.
The package seems to be available at
http://www.biostat.harvard.edu/~carey/vcwww_4.html
--- Niels
The lmsqreg package is by Vince Carey and is available from his
website. There is an independent package with fortran routines from
Tim Cole.
Both packages implement the LMS method of Cole and Green. You might
also
want to consider alternative methods: an approach based on
nonparametric
qu
We are constructing growth charts (age/weight and age/length) for children
with diagnosis that impacts weight/length.
But we we don't know how to use R for producing growth charts.
We are collection data of Age, Weight and Length.
The data are used to produce diagnosis-specific Growth charts (l
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