Re: [R] cumulative sum of within levels of a dataframe

From: Levi Waldron <leviwaldron_at_gmail.com>
Date: Fri, 27 Jun 2008 22:13:46 -0400

Perfect, thanks all. Unlist and ave will both be very handy functions to know. -levi

-- 
Levi Waldron, PhD
Treated Wood Research Group
Faculty of Forestry, University of Toronto
33 Willcocks Street, Toronto ON, M5S 3B3 CANADA
Tel 647-866-5384
Fax 416-978-3834

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