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alex
2004 Sep 11
3
SAS to R migration questions
...w if it would be good for this project. I tried to
describe the essence of the project below without getting bogged down in
details.
It starts when I receive a data flat file. There's lots of columns, but
the relevant ones are:
custid (customer ID number)
saledt (date of sale)
salepx (sale price)
Step 1:
I read in this data into a SAS dataset. Some of these flat files hold
several gigabytes of data. SAS allows indexes to be created on columns
which really speeds up queries.
I read the R import/export doc and it suggested using databases for
really big datasets. I figur...