The CD4 Count Data files for GAMLSS

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Description

CD4: The data were given by Wade and Ades (1994) and refer to cd4 counts from uninfected children born to HIV-1 mothers and the age of the child.

Usage

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Format

Data frames each with the following variable.

cd4

a numeric vector showing the CD4 counts

age

the age of the child

Details

Data sets usefull for the GAMLSS booklet

References

Wade, A. M. and Ader, A. E. (1994) Age-related reference ranges : Significance tests for models and confidence intervals for centiles. Statistics in Medicine, 13, pages 2359-2367.

Examples

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data(CD4)
with(CD4,plot(cd4~age))