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How many records can the R recursive partitioning software handle? We are analyzing 5,000,000 medical records looking at 100 risk factors for the outcome of interest Richard H. White, MD Hibbard E. Williams Endowed Professor of Medicine Chief, Division of General Medicine DIrector, Anticoagulation Service UC Davis Medical Center Suite 2400 PSSB 4150 V Street Sacramento, CA, 95817 Phone 916-734-7005 FAX 916-734-2732 Email: rhwhite@ucdavis.edu [[alternative HTML version deleted]]

Hi! I'm trying to implement an outlier test once/row in a large dataframe. Ideally, I'd do this then add the Pvalue results and the number flagged as an outlier as two new separate columns to the dataframe. Grubbs outlier test requires a vector and I'm confused how to make each row of my dataframe a vector, followed by doing a Grubbs test for each row containing the vector of numbers

Hello everybody, I need to know which samples (S1-S6) contain a value that is bigger than the median + five standard deviations of the column he is in. This is just an example. Command should be applied to a data frame wich is a lot bigger (over 100 columns). Any solutions? Thank you very much for your help!!! > s Samples A B C E 1 S1 1 2 3 7 2