On Jul 9, 2009, at 6:52 PM, Hayes, Rachel M wrote:
I'm trying to automate a data summary using summary or describe from
the
HMisc package. I want to stratify my data set by patient_type. I was
hoping to do something like:
Describe(myDataFrame ~ patient_type)
by(myDataFrame, patient_type, describe)
Or:
Describe.by <- function(.df, .categ) { by( .df, .categ, describe) }
I can create data subsets and run the describe function one at a time,
but there's got to be a better way. Any suggestions?
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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