aids {catdata} | R Documentation |
AIDS
Description
The aids
data was a survey around 369 men who were infected with HIV.
Usage
data(aids)
Format
A data frame with 2376 observations on the following 8 variables.
cd4
number of CD4 cells
time
years since seroconversion
drugs
recreational drug use (yes=1/no=0)
partners
number of sexual partners
packs
packs of cigarettes a day
cesd
a mental illness score
age
Age centered around 30
person
Identification number
Source
Multicenter AIDS Cohort Study (MACS), see Zeger and Diggle (1994), Semi-parametric models for longitudinal data with application to CD4 cell numbers in HIV seroconverters, Biometrics, 50, 689–699.
Examples
## Not run:
##look for:
if(interactive()){vignette("random-aids")}
## End(Not run)
[Package catdata version 1.2.4 Index]