search for: a_68_p20006729

...39;s the data we have: > rs[1:5,] probe_id f1 f2 f3 f4 M A f 1 A_68_P20002076 2 58 0 0 1.51778114 6.344453 59 2 A_68_P20002775 22 8 15 0 0.43419304 5.488819 59 3 A_68_P20005791 43 3 0 0 0.05698666 9.830594 59 4 A_68_P20005805 11 34 0 0 1.71076835 6.624038 59 5 A_68_P20006729 16 44 0 0 0.85498261 6.044229 59 I want rs$f be the max of f1, f2, f3, f4 like a function in excel (=max(f1, f2, f3, f4)). How should we do it in R? I'm not familiar with programing with list. So please be patient Thanks -- Regards, Anh Tran [[alternative HTML version deleted]]