Hadley Wickham <hadley <at> rice.edu> writes: > Why does x[5] <- 5 create a copy
That assigns 5 not 5L. x is being coerced from integer to double. x[5] <- 5L doesn't copy. > , when x[11] (which should be > extending a vector does not) ? I can understand that maybe x[5] <- 5 > hasn't yet been optimised to not make a copy, but if that's the case > then why doesn't x[11] <- 11 make one? Extending a vector is creating a new (longer) vector and copying the old (shorter) one in. That's different to duplicate(). tracemem only reports calls to duplicate(). Matthew ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
