# load the dataset
data(aSAH)
# Gender, outcome and set
with(aSAH, table(gender, outcome))
# Age
with(aSAH, by(age, outcome, mean))
with(aSAH, by(age, outcome,
function(x) sprintf("mean: %.1f (+/- %.1f), median: %.1f (%i-%i)",
mean(x), sd(x), median(x), min(x), max(x))))
# WFNS score
with(aSAH, table(wfns=ifelse(wfns<=2, "1-2", "3-4-5"), outcome))
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