As reported on R-help by Ming-Chung Li,
the cor() function has a new bug in R 1.8.0 when used with
matrix arguments (to give the Cor-Matrix) and the non-default
use = "pairwise.complete.obs"
argument (which can be abbreviated, e.g. to use = "pair").
A quite minimal example is
> x <- cbind(1:3, c(0,4,5))
> cor(x)[1,2]
[1] 0.9449112
> cor(x,use="pair")[1,2]
[1] 0.8858796
This shouldn't have happened, has been my fault, and will be fixed shortly.
Martin Maechler <[EMAIL PROTECTED]> http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum LEO C16 Leonhardstr. 27
ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND
phone: x-41-1-632-3408 fax: ...-1228 <><
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