aids | R Documentation |
The veterans administration studied the effect of AZT on AIDS symptoms for 338 HIV-positive military veterans who were just beginning to express AIDS. AZT treatment was withheld on a random component until helper T cells showed even greater depletion while the other group received the drug immediately. The subjects were also classified by race.
data(aids)
A data frame with 338 observations on the following 3 variables.
race
A factor with levels black
, white
.
AZT
A factor with levels N
, Y
.
symptoms
Presence/absence of AIDS symptoms.
Agresti, A. (2012) Categorical Data Analysis, 3rd edition. New York. Wiley.
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