[R] rank() vs SAS proc rank

[White.Denis@epamail.epa.gov]

SAS proc rank has ties options of high and low that would allow
producing ranks of the type found in the sports pages, e.g.,

rank (c(1,1,2,2,2,2,3)) == 1 1 3 3 3 3 7

Could R support these ties.methods?