Hello, Maybe I am not understanding how negative indexing works but
1) This is right. (1:10)[-1] #[1] 2 3 4 5 6 7 8 9 10 2) Are these right? They are at least surprising to me. (1:10)[-0] #integer(0) (1:10)[-seq_len(0)] #integer(0)It was the last example that made me ask, seq_len(0) whould avoid an if/else or something similar.
Thanks in advance, Rui Barradas ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel