On Thu, 17 Feb 2011, Nasila, Mark wrote:
Dear Sir/Madam,
I would like to know what is the maximum number of observations a
single file must have when using R. I am asking this because am trying
to do research on banking transactions and i have around 49million
records. Can R handle this? Advise with regard to this.
Depends on the platform and how many fields there are in a record.
(On a 64-bit platform we have handled databases of 70m records and
about 30 fields: we did use a DBMS to store them, though: see the 'R
Data Import/Export Manual'.)
OTOH, one could ask what extra useful information there is in 49m
records over a 1% sample. (In our case it was rare combinations, and
we simply extracted those separately from the DBMS.)
Mark Nasila
Quantitative Analyst
CBS Risk Management
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