Hi, I have a list of 1787 fish from 948 full-sib families and their lengths. My table looks like this,
fish fam length 1 a 71.46 2 a 71.06 3 a 62.94 4 b 79.46 5 b 52.38 6 b 56.78 7 b 92.08 8 c 96.86 9 d 98.09 10 d 17.23 11 d 98.35 12 d 82.43 13 e 83.85 14 e 33.92 15 e 23.16 16 e 31.39 17 e 57.08 18 e 27.05 19 f 62.38 20 f 83.21 21 f 18.72 22 f 84.32 23 g 15.99 24 h 40.33 25 h 92.73 26 h 59.08 27 i 29.05 I want to randomly select 2 fish from each family that has 2 or more individuals and exclude those families that have just one fish. How can I do that? Thanks, -- View this message in context: http://r.789695.n4.nabble.com/randomly-subsample-rows-from-subsets-tp4483477p4483477.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
