[R-SIG-Finance] extracting a subTable

Jeff Ryan jeff.a.ryan at gmail.com
Wed Jan 14 22:40:14 CET 2009

> I have a BIG table with data organized by ID, see example on Table#1
> bellow. I would like to extract a smaller table with the same number of
> columns. The rows should include only the last ROW of each ID. Table# 2
> is an example extracted form table #1. I tried using the SUBSET function
> and plan to loop, but I was wondering if someone out there has a more
> efficient way to accomplish this.
> You recommendations are highly appreciated.

My recommendation would be not to send R-help questions to R-sig-FINANCE.


This list derives its value from the high signal to noise ratio it
maintains. Please feel free to send all the 'finance' related
questions you deem fit, but send the general R questions to the
appropriate list(s).


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