AIDS Symptoms and AZT Use Data
The aids data frame has 4 rows and 4 columns.
On February 15, 1991, the New York Times published the results of a study on the presence of AIDS symptoms and AZT use. The data were cross-classified according to the race of the patients.
data(aids)
This data frame contains the following columns:
yesthe number of patients with AIDS symptoms;
nothe number of patients without AIDS symptoms;
aztan indicator variable for AZT use;
racean indicator variable for the race (w=white, b=black).
The data were obtained from the New York Times (2/15/91).
data(aids) summary(aids)
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