[R] Ack! Odd correlation matrix problem
Chris Bergstresser
chris at subtlety.com
Sat Apr 16 22:31:11 CEST 2005
Spencer Graves wrote:
> Does the following answer the question:
> > cor(B, use="complete.obs")
** snip **
> > cor(B, use="pairwise.complete.obs")
Yep. That's exactly the issue. I had thought the reference to
casewise deletion in the help for "complete.obs" was referring solely to
the two variables involved, not the entire dataset.
The documentation might be a little clearer on this point for those
just starting out in statistics, although I suppose it's only an issue
if you're working with correlation matrices, which might imply you're
really *not* just starting out in statistics, and should know better.
-- Chris
More information about the R-help
mailing list