search for: tot_km3i

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2011 Jun 23
1
else problem
Dear R users, I have run into a problem using if...else and I hope you can shed some light on it. I am using R version 2.2.0.1. I have the following data frame: > head(dat2f) year tot_km3y [1,] 1964 0.1876854 [2,] 1965 0.1835116 [3,] 1966 0.1915012 [4,] 1967 0.1869758 [5,] 1968 0.2249865 [6,] 1969 0.1916011 I need to pick out the median year, and since there are an even number of data,