Sum over Index

[Oefuli]

In your Code you start the index at 1 and 2, when taking the difference of the ranks: fr[1:n - 1] - fr[2:n].
But fr starts at 0, doesn't it? I think it should be fr[0:n-1] - fr[1:n].

[GiladAmar]

It's been a while.

But this is largely implemented as a copy of this R code:
XICOR_0.4.1.tar.gz

See the calculateXI.R file, and that does fr[1:n - 1] - fr[2:n].

You're right. It should be "fr[0:n-1] - fr[1:n]" in Python where arrays are 0-indexed, unlike in R where they are indexed at 1.

[GiladAmar]

FWIW I've addressed this issue.
Thanks for pointing it out.