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2007 Jun 05
5
sampling problem - new to R
I have a data set of individual trees and the plots that they are in: Tree Plot 56749 1 63494 1 87375 1 37494 2 92753 3 34847 3 38747 4 etc... So each plot is represented once for every individual that occurrs in it. Plots get different numbers of rows because there can be a different number of individuals in each plot. I want to make a data frame that consists of one