A data frame with 500 observations on the following 8 variables.
crpa numeric vector, C-reactive protein measured in mg/l, with missing values
vasoa factor with two levels Yes No, indicating the use of vasopressor or not
wbca numeric vector, white blood cell count
laca numeric vector, serum lactate
agea numeric vector, age in years
typea factor with levels surgery medical emergency
gendera factor with levels female male
mortan integer with two values 1 0