Is Spearman's cor.test in R tie corrected or not?

Question

I was wondering if the cor.test function in R to compute Spearman's rho is tie-corrected or not. I couldn't find a straight answer in the official R documentation.

An example of tie corrected Spearman is found in:

Cureton, Edward E. The average spearman rank criterion correlation when ties are present. Psychometrika 23, no. 3 (September 1958): 271-272.

Thanks for any hint, Mulone

Answer 1

The "official" documentation is the code itself. And looking there, one sees that there is provision for correction for ties through the use of pkendall().

stats:::cor.test.default

You will also get background information at this recent posting on SO regarding the Spearman-rho and three Kendall-tau's