On 2011-03-29 07:45, Courtney McCracken wrote:
Hi,
Does anyone know if the cor() function under the stats package adjusts
for ties? Specifically, with method="spearman" does R compute the ties
adjusted version of Sperman's rank correlation coefficient or the
uncorrected version? If not, does anyone know of a function/package
that will do this?
R uses the definition in terms of ranks which takes care of ties.
I suppose that by "uncorrected version" you mean the form to
which the definition reduces when there are no ties.
Does anybody still use that nowadays?
Peter Ehlers
Thanks!
Courtney M.
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