Dear R-help, Let's say `x1' and `x2' are very long vectors (length=5e5, say) with same set of names but in different order. If I want to sort `x2' in the order of `x1', I would do
x2[names(x1)] but the amount of time that takes is quite prohibitive! Does anyone have any suggestion on a more efficient way to do this? If the two vectors are exactly the same length (as I said above), sorting both by names would probably be the fastest. However, if the two vectors differ in length (and the names for the shorter one are a subset of names of the longer one) then that doesn't work... Best, Andy ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
