Data on diagnosed heart attacks in a sample of 360 patients hospitalized with suspected heart attack.
Heart
Data frame with 13 observations and the following 4 variables
mck
central value of the class of Creatinine kinase level in variable ck
ck
class of Creatinine kinase level (in IU per litre), factor with 13 levels
(Below 40
, 40-80
, …, 480 and over
)
ha
number of patients with diagnosed heart attack
nha
number of patients without heart attack