[R] kendall tau a,b,c

[martin klein]

hi,

i have 2 lists of ranks for which i'd like to compute kendall tau.
there are ties in the ranks which (to the best of my knowledge) means i
cant use tau a but rather b or c.
how does R handle that? are ties automatically detected (using
corr.test()) and is tau b/c computed instead of tau a?
also kendall does not work when values in list 1 do not occur in list 2
(and vice versa) - how does R handle that, since it still returns results?
thx a mio!

cheers
martin

perl -l -e 'print join "", reverse split //, "!nuf evah"'