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